
Aggiornamento 30 dicembre |
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Tool
suggests humans entered Europe much earlier than thought,
24 December 2014
A stone knife found at a prehistoric gateway into Europe
could force anthropologists to rewrite theories about
how our human ancestors first arrived on the continent.
Archaeologists discovered the sharp stone tool at an
ancient site on the Gediz river, to the east of Izmir,
on the Anatolian peninsula of Turkey. They believe the
quartzite tool was made around 1.2 million years ago,
meaning early humans were in the area far earlier than
previously believed. The earliest human remains to be
discovered so far in Europe are 1.2 million-year-old
bone fragments from the extinct Homo antecessor at
Atapuerca, Spain. The spread of human ancestors has been
a controversial subject and has led to competing
theories of how humans evolved. An extinct species of
human, called Homo antecessor, is thought to have been
living in Atapuerca, Spain, at least 1.2 million years
ago. Footprints attributed to Homo antecessor have also
been found in Happisburgh in Norfolk. However, the
discovery of stone tools in western Turkey could mean
that another species, Homo erectus, whose remains have
been found at sites nearby, could have also moved into
Europe at around the same time. (...) |
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Une
nouvelle vénus datée de 23 000 ans. Les morceaux d’une
statuette en craie représentant une femme ont été
retrouvée à Amiens,
14/12/2014
Un petit amas de morceaux de calcaire a été découvert en
juillet 2014 sur un chantier de fouilles (Renancourt 1)
mené par le service régional de l’archéologie, l’INRAP (Institut
national de recherches archéologiques préventives) et le
service d’archéologie préventive d’Amiens métropole. Ce
chantier est situé dans le quartier Renancourt au
sud-ouest d’Amiens. (...) |
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Israeli cave offers clues about when humans mastered
fire, di N.
Rogers, "Science-News", 12 December 2014
Mastering fire was one of
the most important developments in human prehistory. But
it’s also one of the hardest to pin down, with different
lines of evidence pointing to different timelines. A new
study of artifacts from a cave in Israel suggests that
our ancestors began regularly using fire about 350,000
years ago—far enough back to have shaped our culture and
behavior but too recent to explain our big brains or our
expansion into cold climates. If most archaeological
sites offer a snapshot of the ancient past, Tabun Cave
provides a time-lapse video. The site, about 24
kilometers south of Haifa, documents 500,000 years of
human history. “Tabun Cave is unique in that it’s a site
with a very long sequence,” says Ron Shimelmitz, an
archaeologist at the University of Haifa and a co-author
on the new study. “We could examine step by step how the
use of fire changed in the cave.” The researchers
examined artifacts previously excavated from the site,
which are mostly flint tools for cutting and scraping,
and flint debris created in their manufacture. To
determine when fire became a routine part of the lives
of the cave dwellers, the team looked at flints from
about 100 layers of sediments in the lowermost 16 meters
of the cave deposits. (...) |
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Neanderthal bones in Northern France,
10 December 2014
At a rescue excavation of an open-air prehistoric site,
Tourville-la-Rivière in the Seine Valley of Normandy in
northern France, archaeologists were in for a surprise -
the discovery of three long human arm bones. The experts
detail the unearthing, description, and analysis of
these three partially crushed bones: a left humerus,
radius, and ulna from the same upper left limb. The
authors of the study used a spectroscopic technique
(electron spin resonance, or ESR) and a radiometric
dating technique (Uranium-thorium dating, or U-series
dating) to determine an approximate age for the
Tourville human remains. They then scanned the bones in
an X-ray and processed them on the computer to generate
a 3D cross-sectional image of the bones, allowing them
to examine their shapes and characterize them within the
Neanderthal lineage. (...) |
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Environmental History of European
High Mountains,
"Quaternary
International", Volume 353, Pages 1-266 (5 December
2014). Edited by Didier Galop and Norm Catto
- Mid-Late Holocene environmental
change and human activities in the northern Apennines,
Italy, di N.
P. Branch, N. A.F. Marini
- The earliest Acheulean
technology at Atapuerca (Burgos, Spain): Oldest levels
of the Galería site (GII Unit),
di P. García-Medrano, A.
Ollé, M. Mosquera, I. Cáceres, C. Díez, E. Carbonell |
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Homo erectus at Trinil on Java
used shells for tool production and engraving,
di J. C. A.
Joordens et alii, "Nature-Letter", 03 December
2014, doi:10.1038/nature13962
The
manufacture of geometric engravings is generally
interpreted as indicative of modern cognition and
behaviour1. Key questions in the debate on the origin of
such behaviour are whether this innovation is restricted
to Homo sapiens, and whether it has a uniquely African
origin1. Here we report on a fossil freshwater shell
assemblage from the Hauptknochenschicht (‘main bone
layer’) of Trinil (Java, Indonesia), the type locality
of Homo erectus discovered by Eugène Dubois in 1891 (refs
2 and 3). In the Dubois collection (in the Naturalis
museum, Leiden, The Netherlands) we found evidence for
freshwater shellfish consumption by hominins, one
unambiguous shell tool, and a shell with a geometric
engraving. We dated sediment contained in the shells
with 40Ar/39Ar and luminescence dating methods,
obtaining a maximum age of 0.54 ± 0.10 million years and
a minimum age of 0.43 ± 0.05 million years. This implies
that the Trinil Hauptknochenschicht is younger than
previously estimated. Together, our data indicate that
the engraving was made by Homo erectus, and that it is
considerably older than the oldest geometric engravings
described so far4, 5. Although it is at present not
possible to assess the function or meaning of the
engraved shell, this discovery suggests that engraving
abstract patterns was in the realm of Asian Homo erectus
cognition and neuromotor control. |
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Homo erectus made world's oldest
doodle 500,000 years ago,
di E. Callaway,
"Nature-News", 03 December 2014
A zigzag engraving on a shell from Indonesia is the
oldest abstract marking ever found. But what is most
surprising about the half-a-million-year-old doodle is
its likely creator — the human ancestor Homo erectus.
"This is a truly spectacular find and has the potential
to overturn the way we look at early Homo," says Nick
Barton, an archaeologist at the University of Oxford, UK,
who was not involved in the discovery, which is
described in a paper published online in Nature on 3
December. By 40,000 years ago, and probably much earlier,
anatomically modern humans — Homo sapiens — were
painting on cave walls in places as far apart as Europe2
and Indonesia3. Simpler ochre engravings found in South
Africa date to 100,000 years ago4. Earlier this year,
researchers reported a 'hashtag' engraving in a
Gibraltar cave once inhabited by Neanderthals5. That was
the first evidence for drawing in any extinct species.
But until the discovery of the shell engraving, nothing
approximating art has been ascribed to Homo erectus. The
species emerged in Africa about 2 million years ago and
trekked as far as the Indonesian island of Java, before
going extinct around 140,000 years ago. Most
palaeoanthropologists consider the species to be the
direct ancestor of both humans and Neanderthals.
(...)
· La prima opera d'arte?
Una conchiglia di 500.000 anni fa,
di B. Keim, "National
Geographic Italia", 04 dicembre 2014
· Etchings on a
500,000-year-old shell appear to have been made by human
ancestor, di M.
Balter, "Science-News", 3 December 2014
· Quando Homo erectus
inventò le decorazioni geometriche,
"Le Scienze", 03 dicembre
2014 |
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Palaeolithic research at Mochlos, Crete: new evidence
for Pleistocene maritime activity in the Aegean,
di C. Runnels, F. McCoy, R. Bauslaugh, P. Murray, "Antiquity-Project
Gallery", Issue 342, December 2014
To reach Europe, archaic
hominins followed multiple pathways, including a
terrestrial route through south-west Asia (Carbonell et
al. 2008), and perhaps across the Strait of Gibraltar to
Iberia in the west (Rolland 2013). The Aegean has been
proposed as another possible gateway to south-eastern
Europe, both by land and by sea (Tourloukis & Karkanas
2012; Broodbank 2013: 82–108). But did archaic hominins
use boats to cross the open sea with islands as possible
way points (Simmons 2014: 203–12; Runnels in press)?
During a geological study of a Quaternary alluvial fan
sequence at Mochlos, Crete, the chance discovery of
isolated artefacts of Lower and/or Middle Palaeolithic
type may throw light on this question (...). |
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Specialised hunting of Iberian ibex during Neanderthal
occupation at El Esquilleu Cave, northern Spain,
di J. Yravedra
Sáinz de los Terreros, A. Gómez‑Castanedo, J. Aramendi
Picado, J. Baena Preysler, "Antiquity", Issue 342 -
December 2014, Volume: 88, Page: 1035–1049
Traditional views of
Neanderthal hunting strategies envisage them preying on
herd species such as bison and deer, rather than the
sophisticated tracking of solitary animals. Analysis of
faunal remains from El Esquilleu Cave in northern Spain,
however, demonstrates that during certain periods of the
Middle Palaeolithic occupation, Neanderthals focused on
the hunting of ibex and chamois, small solitary species
that inhabited the mountainous terrain around the site.
These results indicate that Neanderthal hunting
practices may have had more similarity to those of their
Upper Palaeolithic relatives than is usually assumed. |
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Right for the Wrong Reasons: Reflections on Modern Human
Origins in the Post-Neanderthal Genome Era,
di T. W. Holliday,
J. R. Gautney, L. Friedl, "Current Anthropology", Vol.
55, No. 6, December 2014, pp. 696-724
The sequencing of the
Neanderthal genome answered once and for all the
question of whether these hominins played a role in the
origins of modern humans—they did, and a majority of
humans alive today retain a small portion of Neanderthal
genes. This finding rejects the strictest versions of
the Recent African Origin model and has been celebrated
by supporters of Multiregional Evolution (MRE). However,
we argue that MRE can also be rejected and that other,
intermediate, models of modern human origins better
represent the means by which modern humans became the
only extant human species. We argue this because we
reject one of the major tenets of MRE: global gene flow
that prevents cladogenesis from occurring. First, using
reconstructions of Pleistocene hominin census size, we
maintain that populations were neither large nor dense
enough to result in such high levels of gene flow across
the Old World. Second, we use mammalian divergence and
hybridization data to show that the emergence of Homo is
recent enough that member species of this genus were
unlikely to have been reproductively isolated from each
other, even in the absence of the high levels of global
gene flow postulated by MRE supporters. |
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The Transition to the Acheulean in
East Africa: an Assessment of Paradigms and Evidence
from Olduvai Gorge (Tanzania),
di I. de la Torre, R.
Mora, "Journal of Archaeological Method and Theory",
December 2014, Volume 21, Issue 4, pp 781-823
The
origin of the Acheulean constitutes a key aspect of
current research in the archaeology of human evolution.
Olduvai Gorge is one of the main sites in Africa in the
study of the transition from the Oldowan to the
Acheulean, due to both the uniqueness of its
archaeological record, and the influence of early
investigations at Olduvai on the development of Early
Stone Age research. This paper reviews the impact of
work at Olduvai in shaping a modern view of cultural
evolution from the Oldowan to the Acheulean. It also
evaluates the lithic assemblages excavated by Mary
Leakey in Olduvai Middle and Upper Bed II, based on a
first-hand review of the collections. We conclude that
previous paradigms used to explain inter-assemblage
variability are not superseded as much as generally
assumed, and that a modern view of the origins of the
Acheulean requires a reassessment of the cultural,
biological, and paleoecological evidence at Olduvai and
elsewhere in Africa. |
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The
Role of Freshwater and Marine Resources in the Evolution
of the Human Diet, Brain and Behavior,
"Journal of Human Evolution", Volume 77, Pages 1-216 (December
2014). Edited by Stephen Cunnane, Kathlyn Stewart and
Ian Tattersall
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Environmental change and hominin
exploitation of C4-based resources in wetland/savanna
mosaics, di
K. M. Stewart
- The origins and significance of
coastal resource use in Africa and Western Eurasia,
di C. W. Marean
- Metabolism as a tool for
understanding human brain evolution: Lipid energy
metabolism as an example,
di S. Pei Wang, H. Yang,
J. Wei Wu, N. Gauthier, T. Fukao, G. A. Mitchell
- Orangutan fish eating, primate
aquatic fauna eating, and their implications for the
origins of ancestral hominin fish eating,
di A. E. Russon, A.
Compost, P. Kuncoro, A. Ferisa
- Nutrition, modernity and the
archaeological record: Coastal resources and nutrition
among Middle Stone Age hunter-gatherers on the western
Cape coast of South Africa,
di K. Kyriacou, J. E.
Parkington, A. D. Marais, D. R. Braun
- Early Pleistocene aquatic
resource use in the Turkana Basin,
di W. Archer, D. R. Braun,
J. W.K. Harris, J. T. McCoy, B. G. Richmond
- Energetic and nutritional
constraints on infant brain development: Implications
for brain expansion during human evolution,
di S. C. Cunnane,
M. A. Crawford
- Docosahexaenoic acid and human
brain development: Evidence that a dietary supply is
needed for optimal development,
di J. T. Brenna, S. E.
Carlson
- A fish is not a fish: Patterns
in fatty acid composition of aquatic food may have had
implications for hominin evolution,
di J. C.A. Joordens, R. S.
Kuipers, J. H. Wanink, F.A.J. Muskiet
- Another unique river: A
consideration of some of the characteristics of the
trunk tributaries of the Nile River in northwestern
Ethiopia in relationship to their aquatic food resources,
di J. Kappelman, D.
Tewabe, L. Todd, M. Feseha, M. Kay, G. Kocurek, B.
Nachman, N. Tabor, M. Yadeta
- The appropriation of glucose
through primate neurodevelopment,
di A. L. Bauernfeind, C.
C. Babbitt
- Diet as driver and constraint in
human evolution,
di I. Tattersall
- Craniofacial modularity,
character analysis, and the evolution of the premaxilla
in early African hominins,
di B. A. Villmoare, C.
Dunmore, S. Kilpatrick, N. Oertelt, M. J. Depew, J. L.
Fish
- Food material properties and
early hominin processing techniques,
di K. D. Zink, D. E.
Lieberman, P. W. Lucas
- Neandertal growth: What are the
costs? di A.
Mateos, I. Goikoetxea, W. R. Leonard, J. Á.
Martín-González, G. Rodríguez-Gómez, J. Rodríguez
- A comparison of catarrhine
genetic distances with pelvic and cranial morphology:
Implications for determining hominin phylogeny,
di N. von
Cramon-Taubadel, S. J. Lycett
- Dating human occupation at Toca
do Serrote das Moendas, São Raimundo Nonato,
Piauí-Brasil by electron spin resonance and optically
stimulated luminescence,
di A. Kinoshita et alii
- ‘Fire at will’: The emergence of
habitual fire use 350,000 years ago,
di R. Shimelmitz, S. L.
Kuhn, A. J. Jelinek, A. Ronen, A. E. Clark, M.
Weinstein-Evron
- A revision of hominin fossil
teeth from Fontana Ranuccio (Middle Pleistocene, Anagni,
Frosinone, Italy),
di M. Rubini, V. Cerroni,
G. Festa, R. Sardella, P. Zaio |
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Hommes et
environnements au Paléolithique supérieur en Ukraine
continentale et en Crimée,
"L'Anthropologie", Volume
118, Issue 5, Pages 479-598 (November–December 2014),
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Hommes et environnements au Paléolithique supérieur en
Ukraine continentale et en Crimée: introduction,
di S. Péan, S. Prat
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Codes mythiques du Mézinien,
di M. Otte
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Analyse du débitage laminaire du site de Mezhyrich:
habitations no 1, 2 et 3,
di V. M. Lozovski, O. V.
Lozovskaya
-
Isotopes stables (13C, 15N) du collagène des mammouths
de Mezhyrich (Epigravettien, Ukraine): implications
paléoécologiques,
di D. G. Drucker, H.
Bocherens, S. Péan
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Analyse des micromammifères du site épigravettien de
Mezhyrich (Ukraine),
di L. Rekovets, D.
Nowakowski, K. Lech
-
Les assemblages lithiques du site épigravettien de
Buzhanka 2 (Ukraine),
di D. Stupak
-
Les occupations gravettiennes de Buran-Kaya III (Crimée):
contexte archéologique),
di A. Yanevich
-
Stress physiologique et état de santé des plus anciens
Hommes anatomiquement modernes du sud-est de l’Europe
(données dentaires, couche 6-1, Buran-Kaya III, Crimée),
di S. Prat
-
Comportements de subsistance au Paléolithique supérieur
en Crimée : analyse archéozoologique des couches 6-2,
6-1 et 5-2 de Buran-Kaya III,
di L. Crépin, S. Péan, M.
Lázničková-Galetová |
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Archaeologists race against time to explore Neanderthal
site,
29 November 2014
University of Southampton
archaeologists are working to save important
Palaeolithic remains at a rare Neanderthal site, before
they are lost to the forces of nature. The Baker's Hole
site, at Ebbsfleet in Kent, is Britain's foremost
location for evidence dating to the time when Britain
was being colonised by early Neanderthals, some 250,000
years ago, but researchers are racing to excavate and
examine the surviving remains, as erosion, animal
burrows and plant roots threaten to damage the site.
(...) |
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Genomic structure in Europeans
dating back at least 36,200 years,
di A. Seguin-Orlando et
alii, "Science", 28 November 2014: Vol. 346 no. 6213
pp. 1113-1118
The
origin of contemporary Europeans remains contentious. We
obtained a genome sequence from Kostenki 14 in European
Russia dating from 38,700 to 36,200 years ago, one of
the oldest fossils of anatomically modern humans from
Europe. We find that Kostenki 14 shares a close ancestry
with the 24,000-year-old Mal’ta boy from central
Siberia, European Mesolithic hunter-gatherers, some
contemporary western Siberians, and many Europeans, but
not eastern Asians. Additionally, the Kostenki 14 genome
shows evidence of shared ancestry with a population
basal to all Eurasians that also relates to later
European Neolithic farmers. We find that Kostenki 14
contains more Neandertal DNA that is contained in longer
tracts than present Europeans. Our findings reveal the
timing of divergence of western Eurasians and East
Asians to be more than 36,200 years ago and that
European genomic structure today dates back to the Upper
Paleolithic and derives from a metapopulation that at
times stretched from Europe to central Asia.
· Modern Europeans have
genetic ties that bind them together much further back
in time than once thought, scientists report after
analyzing a prehistoric Russian man's DNA,
di A. Curry, "National
Geographic", November 6, 2014 |
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Lucy
discoverer on the ancestor people relate to,
di E. Callaway,
"Natura-News", 21 November 2014
“Feeling really lucky,”
Donald Johanson wrote in his diary the morning of 24
November 1974, while staying at a remote camp in
northern Ethiopia’s Afar region. Hours later, the
palaeoanthropologist, now at Arizona State University in
Tempe, happened upon the 3.2-million-year-old remains of
a small-bodied early human, possibly on the lineage that
gave rise to Homo sapiens. He and his collaborators
named it Australopithecus afarensis, and the skeleton
became known to the world as Lucy. Forty years on,
Johanson, now 71, talks about the discovery and Lucy’s
enduring importance and appeal. (...) |
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Livre:
Pré-ludes, autour de l'homme préhistorique, di Yves
Coppens - Editions Odile Jacob |
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Were
Neanderthals a sub-species of modern humans? New
research says no,
November 18, 2014
Researchers have identified new evidence supporting the
growing belief that Neanderthals were a distinct species
separate from modern humans (Homo sapiens), and not a
subspecies of modern humans. (...) |
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Loess and the record of upper Palaeolithic cultures in
the Danube Basin,
"Quaternary
International", Volume 351, Pages 1-230 (17 November
2014). Edited by Christine Neugebauer-Maresch, Ulrich
Hambach and Mircea Anghelinu
- Loess and the record of Upper
Palaeolithic cultures in the Danube Basin,
di C. Neugebauer-Maresch,
U. Hambach, M. Anghelinu
- The archaeological record of the
Gravettian open air site Krems-Wachtberg,
di U. Simon, M. Händel, T.
Einwögerer, C. Neugebauer-Maresch
- The conceptual sedimentary model
of the Lower Danube loess basin: Sedimentogenetic
implications,
di D. C. Jipa
- Geoarchaeology of Upper
Palaeolithic loess sites located within a transect
through Moravian valleys, Czech Republic,
di L. Lisá, J. Hošek, A.
Bajer, T. Matys Grygar, D. Vandenberghe
- Krems-Wachtberg excavations
2005–12: Main profiles, sampling, stratigraphy, and site
formation,
di M. Händel, T. Einwögerer, U. Simon, C.
Neugebauer-Maresch
- Upper Palaeolithic occupation in
the Wachtberg area of Krems: The evidence of surveys,
sections and core samples,
di T. Einwögerer, M.
Händel, U. Simon, A. Masur, C. Neugebauer-Maresch
- Paleoenvironmental fluctuations
as recorded in the loess-paleosol sequence of the Upper
Paleolithic site Krems-Wachtberg,
di B. Terhorst, P. Kühn,
B. Damm, U. Hambach, S. Meyer-Heintze, S. Sedov
- Our oldest children: Age
constraints for the Krems-Wachtberg site obtained from
various thermoluminescence dating approaches,
di L. Zöller, D.
Richter, H. Blanchard, T. Einwögerer, M. Händel, C.
Neugebauer-Maresch
- Luminescence based loess
chronostratigraphy of the Upper Palaeolithic site
Krems-Wachtberg, Austria,
di J. Lomax, M. Fuchs, F.
Preusser, M. Fiebig
- Geoarchaeological prospection in
the loess steppe: Preliminary results from the Lower
Danube Survey for Paleolithic Sites (LoDanS),
di R. Iovita, A.
Doboş, K. E. Fitzsimmons, M. Probst, U. Hambach, M. Robu,
M. Vlaicu, A. Petculescu
- Hearth-side bone assemblages
within the 27 ka BP Krems-Wachtberg settlement: Fired
ribs and the mammoth bone-grease hypothesis,
di F. A. Fladerer,
T. A. Salcher-Jedrasiak, M. Händel
- Spatial and chronological
patterns of the lithics of hearth 1 at the Gravettian
site Krems-Wachtberg,
di R. Thomas, J. Ziehaus
- Radiolarite studies at
Krems-Wachtberg (Lower Austria): Northern Alpine versus
Carpathian lithic resources,
di M. Brandl, C.
Hauzenberger, W. Postl, M. M. Martinez, P. Filzmoser, G.
Trnka-
Archaeological significance of the
Palaeolithic charcoal assemblage from Krems-Wachtberg,
di O. Cichocki, B.
Knibbe, I. Tillich
- What's in a name: The
Aurignacian in Romania,
di M. Anghelinu, L. Niţă
- Preliminary reassessment of the
Aurignacian in Banat (South-western Romania),
di V. Sitlivy et
alii
- Genesis of loess-like sediments
and soils at the foothills of the Banat Mountains,
Romania – Examples from the Paleolithic sites Româneşti
and Coşava,
di H. Kels et alii |
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Paleoclimatic and paleoenvironmental context of the
Early Pleistocene hominins from Dmanisi (Georgia, Lesser
Caucasus) inferred from the herpetofaunal assemblage,
di H. A. Blain, J.
Agustí, D. Lordkipanidze, L. Rook, M. Delfino, "Quaternary
Science Reviews", Volume 105, 1 December 2014, Pages
136–150 Dmanisi
is currently the oldest Early Palaeolithic site
discovered out of Africa. It has produced over 40
hominin remains, including a set of very informative
skulls, in direct association with faunal remains and
numerous lithic artifacts. Given the relevance of this
locality, every effort is being made to reconstruct the
landscapes where these hominins once lived. Amphibian
and reptile remains from Dmanisi are here described for
the first time and used as paleoclimatic and
paleoenvironmental proxies. They comprise at least six
taxa: a green toad (Bufo gr. Bufo viridis), the Greek
tortoise (Testudo graeca), a green lizard (Lacerta gr.
Lacerta viridis), a four-lined snake (Elaphe gr. Elaphe
quatuorlineata), an indeterminate colubrid and a water
snake (Natrix sp.). As these taxa are not extinct and
their ecology can be directly studied, they can
contribute to the reconstruction of the landscape and
climate. The application of the Mutual Climatic Range
method provides quantitative data indicating that during
the hominin presence at Dmanisi climate was warm and
dry, similar to the present-day Mediterranean climate.
In comparison with today climate of Dmanisi, estimated
mean annual temperature was 3.1 °C higher, with a
greater increase of temperature in summer (+7.1 °C) than
in winter (+4.7 °C). The mean annual precipitation was
slightly lower (−65 mm) than the current level, with
precipitation higher than current one during winter
(+104 mm) but strongly lower during the other seasons,
suggesting a stronger contrast in the rainfall regime
during the year. From a paleoenvironmental point of view,
fossil amphibians and reptiles all suggest the
predominance of arid environments, from steppe or
semi-desert to open Mediterranean forest, with stony or
rocky substrate and bushy areas. The presence of
permanent aquatic environments is also documented. These
results mainly agree with those for large mammals, small
mammals and the archaeobotanical analysis that indicate
an important water stress suggesting a period of
increased aridity contemporaneous with human occupations
of the site. |
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Using obsidian transfer distances to explore social
network maintenance in late Pleistocene hunter–gatherers,
di E. Pearce, T.
Moutsiou, "Journal of Anthropological Archaeology",
Volume 36, December 2014, Pages 12–20
Social behaviour is
notoriously difficult to study archaeologically and it
is unclear how large the networks of prehistoric humans
were, or how they remained connected. Maintaining social
cohesion was crucial for early humans because social
networks facilitate cooperation and are imperative for
survival and reproduction. Recent hunter–gatherer social
organisation typically comprises a number of nested
layers, ranging from the nuclear family through to the
~1500-strong ethnolinguistic tribe. Here we compare
maximum obsidian transfer distances from the late
Pleistocene with ethnographic data on the size of the
geographic areas associated with each of these social
grouping layers in recent hunter–gatherers. The closest
match between the two is taken to indicate the maximum
social layer within which contact could be sustained by
Pleistocene hominins. Within both the (sub)tropical
African and Subarctic biomes, the maximum obsidian
transfer distances for Pleistocene modern humans (~200
km and ~400 km respectively) correspond to the
geographic ranges of the outermost tribal layer in
recent hunter–gatherers. This suggests that modern
humans could potentially sustain the cohesion of their
entire tribe at all latitudes, even though networks are
more dispersed nearer the poles. Neanderthal maximum
obsidian transfer distances (300 km) indicate that
although Neanderthal home ranges are larger than those
of low latitude hominins, Neanderthals travelled shorter
distances than modern humans living at the same high
latitudes. We argue that, like modern humans,
Neanderthals could have maintained tribal cohesion, but
that their tribes were substantially smaller than those
of contemporary modern humans living in similar
environments. The greater time taken to traverse the
larger modern human tribal ranges may have limited the
frequency of their face-to-face interactions and thus
necessitated additional mechanisms to ensure network
connectivity, such as the exchange of symbolic artefacts
including ornaments and figurines. Such cultural
supports may not have been required to the same extent
by the Neanderthals due to their smaller tribes and home
ranges. |
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Ornamental traditions in the Eastern Adriatic: The Upper
Palaeolithic and Mesolithic personal adornments from
Vela Spila (Croatia),
di E. Cristiani, R.
Farbstein, P. Miracle, "Journal of Anthropological
Archaeology", Volume 36, December 2014, Pages 21–31
This paper advances the
current knowledge on past foragers’ ornamental
traditions by comparing the Late Upper Palaeolithic and
Mesolithic personal adornments from the southeastern
Mediterranean, with a particular focus on the site of
Vela Spila (Korčula island, Croatia). The assemblages we
discuss here date from c. 19,500–8150 cal BP, with
occupational evidence both before and after the
Pleistocene–Holocene transition in the region. The
assemblages from Vela Spila comprise one of the largest
and richest records of prehistoric personal
ornamentation in Southeastern Europe. Our analysis has
allowed us to reconstruct changing traditions and
technologies of social expression and symbolism in the
Adriatic during a crucial period of social,
technological, and environmental transition. In
particular, our data reveal an apparent shift in
ornamental traditions and technologies from the Late
Palaeolithic, when diverse marine and terrestrial raw
materials were collected and modified to make ornaments,
to the Mesolithic, when a single marine gastropod was
used exclusively. When these results are contextualised
and compared across the Adriatic region, and, more
broadly, at sites throughout southeastern Europe, Vela
Spila appears unique in its significance as a
procurement and processing centre for one important type
of Mesolithic ornament, Columbella rustica. The
repeatedly and exclusive selection of this marine
gastropod to make ornaments during the Mesolithic seems
to be a clue that it was fundamentally important for the
construction and maintenance of identity and personhood. |
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Towards complexity in osseous raw
material exploitation by the first anatomically modern
humans in Europe: Aurignacian antler working,
di J. M. Tejero,
"Journal of Anthropological Archaeology", Volume 36,
December 2014, Pages 72–92
This
paper asses changes in the exploitation of osseous raw
material (namely deer antler) during the early Upper
Palaeolithic in Europe. Through examining four variables;
raw material procurement, blank production, object
manufacture and equipment maintenance, the author
establishes that the complex and innovative working of
osseous materials is restricted to antler working at
around 40 Ka cal BP and are thus chronologically
coincident with the emergence of the Early Aurignacian.
Conversely, bone exploitation (known from the Lower
Palaeolithic), shows a continuity through the Mousterian,
the Proto-Aurignacian and the Early Aurignacian,
invalidating the argument that osseous material
exploitation represents a radical difference between the
Middle and Upper Palaeolithic in Europe. By considering
the technological and functional aspects of the Early
Aurignacian antler equipment, including their
chronological and palaeoclimatic (Heinrich event 4/Campanian
Ignimbrite eruption) context, a hypothesis that may
explain the incentives behind the emergence of complex
osseous raw material exploitation in Europe during the
late Pleistocene is proposed. |
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Millennial-scale change in
archaeofaunas and their implications for Mousterian
lithic variability in southwest France,
di E. Morin, A. Delagnes,
D. Armand, J. C. Castel, J. Hodgkins, "Journal of
Anthropological Archaeology", Volume 36, December 2014,
Pages 158–180
The
problem of Mousterian interassemblage variability is
fundamental because it affects our models about social,
technological and economic organization of Middle
Paleolithic hominins. Particularly controversial is the
issue of whether this variability reflects a
chronological succession of industries or differences in
ethnicity, site function, tool curation or raw material
use, among others. Here, the chronological hypothesis is
examined by correlating faunal data in southwest France
with independently dated climatic events. In agreement
with this hypothesis, our data show consistent patterns
in lithic and faunal composition between sequences that
are incompatible with scenarios assuming a coexistence
or alternation of industries. Our results imply that
industrial variability during the Late Pleistocene
Middle Paleolithic follows distinct chronological stages
not unlike those in later periods. Building on
correlations indicating that archaeofaunas were tuned to
climatic change induced by orbital forcing, we assess
the implications of a new independently-derived
chronology for our understanding of the Mousterian of
France.
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The alleged Early Palaeolithic
artefacts are in reality geofacts: a revision of the
site of Kończyce Wielkie 4 in the Moravian Gate, South
Poland, di
A. Wiśniewski, J. Badura, T. Salamon, J. Lewandowski,
"Journal of Archaeological Science", Volume 52, December
2014, Pages 189–203
In this
paper we show that a site Kończyce Wielkie 4 (SW Poland)
published in JAS (2010a) by Foltyn et al. can no longer
be accepted as a reliable evidence for the oldest
presence of humans in the northern part of Carpathians
and Sudetes Mountains (Matuyama-Brunhes). Unfortunately,
in the light of conducted analysis among others with
Peacock's method, it seems that the lithics from
Kończyce Wielkie appear to be much more similar to
geofacts rather than to artefacts. As a background for
comparison Lower Paleolithic artefacts from two German
sites Wallendorf and Wangen were used. Moreover, the
petrological determination of the finds from Kończyce
Wielkie is also dubious issue. Foltyn et al. suggested a
long distance transport of lithics from several sources.
As it has been demonstrated in the paper, local glacial
sediments consist of rocks that are analogous to
published lithic spectrum. Finally, the geological data
shown by Foltyn et al. seem to be incorrect. Authors did
not take into account the results concerning the
regional geology that indicate clearly much younger age
of layers dated by Foltyn et al. (2010a) at the
beginning of the Middle Pleistocene. |
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In search of Paleolithic dogs: a
quest with mixed results,
di D. F. Morey, "Journal
of Archaeological Science", Volume 52, December 2014,
Pages 300–307
Archaeological evidence has long placed the origins of
the domestic dog (Canis lupus familiaris) just prior to
the beginning of the Holocene Epoch, some 12,000–15,000
years ago. Some studies of genetic profiles of modern
canids have, however, suggested a much earlier origin,
dating to Paleolithic times and perhaps exceeding
100,000 years. With such studies as a backdrop, cases
have been made recently on archaeological grounds for
Paleolithic dogs that in certain cases exceed 30,000
years old. When examined systematically, however, some
such studies exhibit conceptual and methodological flaws,
calling into serious question the accuracy of the cases
advanced. At least one recent study highlights that
difficulty. When a series of cases for putative
Paleolithic dogs is assessed, convincing cases for such
dogs are confined to about the past 15,000 years, or
latest Paleolithic times. Further developments on
certain specific fronts may change that, but for the
time being the longstanding archaeological understanding
of the dog domestication time frame continues to be
reasonably accurate. Recent molecular genetic studies
are converging on that temporal framework as well.
Archaeologists need not be automatically swayed by
ongoing changes in molecular genetic profiles. |
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Lithic tool management in the
Early Middle Paleolithic: an integrated
techno-functional approach applied to Le Pucheuil-type
production (Le Pucheuil, northwestern France),
di T. Lazuén, A.
Delagnes, "Journal of Archaeological Science", Volume
52, December 2014, Pages 337–353
The
significant development of predetermined flake
technologies marks the beginning of the Middle
Paleolithic in Europe. This phenomenon is not only
expressed by the increase in the Levallois methods, but
it also includes a diversity of other flaking methods,
e.g. micro-Levallois, Kombewa, truncated-faceted and Le
Pucheuil, often related to secondary reduction sequences.
The tool management and use patterns they fulfill are
still largely unknown due to the scarcity of use-wear
analyses, whereas their technological characteristics
are well defined. In this paper we present a combined
technological and functional study of Le Pucheuil-type
flakes (Delagnes, 1993), from the eponymous Early Middle
Paleolithic site of Le Pucheuil (northwestern France).
The technical investment during the reduction sequence
is relatively low but flaking is nevertheless guided by
specific and constant technical rules which result in
the production of predetermined flakes. These flakes
share common morphotechnical attributes: an acute,
straight or slightly curved, distal edge opposed to a
robust and wide proximal area. The use-wear analysis
shows that this morphology was clearly sought after
insofar as the distal acute edges were used as working
edges while the proximal edges served as prehensile
areas. Despite their similarity, Le Pucheuil-type flakes
were used for a variety of tasks, including butchery but
also hide scraping, wood and non-woody plant working.
Tool management suggests that their production responded
to deferred and/or collective uses. Our combined
approach points to: 1. the high degree of elaborateness
and flexibility of the tool management strategies
developed in the Early Middle Paleolithic in Europe, 2.
the presence of long-lasting and multi-activity
occupations in an open-air context during the harsh
environmental conditions at the beginning of the
penultimate glaciation (OIS 6). The results finally show
the great potential of combined technological/functional
approaches to lithic assemblages as a way to refine our
understanding of the technical, social and economical
organization of Neanderthal hunter-gatherers, most
specifically in contexts where lithics are the only
preserved materials. |
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Middle-to-Upper Palaeolithic site
formation processes at the Bordes-Fitte rockshelter (Central
France), T.
Aubry et alii, "Journal of Archaeological
Science", Volume 52, December 2014, Pages 436–457
Transformation in technological patterns associated with
the Middle-to-Upper Palaeolithic transition between 50
and 40 ka in Western Europe and their relationship with
the Neanderthal and Anatomically Modern Human
populations and behaviors are issues that continue to
stimulate heated debate. In this article we use the
Middle and Early Upper Palaeolithic
archaeo-stratigraphic record from the Bordes-Fitte
rockshelter (les Roches d'Abilly site, Central France),
a Bayesian analysis of the ages obtained by accelerator
mass spectrometry radiocarbon on ultrafiltered collagen
and by luminescence on quartz and feldspar grains, to
establish a timeline for material culture and
sedimentary dynamic changes during the Middle-to-Upper
Palaeolithic transition. Technology, refitting studies
and taphonomy of lithic artifacts recovered in the
geoarchaeological field units D1 and D2 permit to
characterize 3 reduction strategies (Levallois,
Discoidal and Châtelperronian blade) that took place
between the cold Heinrich events 5 and 4. We discuss the
implications of the results to characterize the end of
the Middle Palaeolithic, and for distinguishing
anthropogenic and non-anthropogenic factors in
Middle-to-Upper Palaeolithic assemblage's variability. |
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Chronology of the Middle
Palaeolithic open-air site of Combe Brune 2 (Dordogne,
France): a multi luminescence dating approach,
di M. Frouin et
alii, "Journal of Archaeological Science", Volume
52, December 2014, Pages 524–534
The
Bergerac region of south-western France is well known
for its wealth of Middle Palaeolithic open-air sites.
However, their chronology remains poorly understood due
to the complexity of the deposits and difficulties
applying radiometric dating techniques. Combe Brune 2,
excavated in 2006 and 2007 by the INRAP (Institut
National de Recherches Archéologiques Préventives),
comprises a substantial stratigraphic sequence providing
an almost continuous sedimentary record that is unique
for the region. Three lithic assemblages were documented
in the eastern part of the site and six stratified
assemblages in the western part, five of which are
concentrated in Unit 7. All the clearly individualised
industries portray an unequivocal techno-economic
coherence and are dominated by Levallois debitage.
Minerals present in the sediments were dated by the
Optically Stimulated Luminescence (OSL) using different
protocols (Thermal–Transfer: TT-OSL for quartz grains
and IRSL and post-IR IRSL for feldspar grains). Heated
flints were also dated by thermoluminescence (TL).
Dating results obtained from quartz and feldspars grains
provide an age of 234 ± 25 ka for Unit 8 at the base of
the western sequence, 161 ± 18 to 97.3 ± 12 ka for Unit
7; 63.1 ± 6.5 ka for Unit 4 and a series of ages ranging
from 39.2 ± 4.0 to 22.3 ± 2.2 ka for Unit 3. TL ages
obtained from heated flints recovered from the base of
Unit 7 in the eastern section range from 183 ± 20 to 195
± 16 ka. These results are in good agreement and are
stratigraphically coherent, suggesting that the Early
Middle Palaeolithic occupation, the first documented for
the Bergerac region, can be placed at the end of Marine
Isotopic Stage (MIS) 7 and the beginning of MIS 6. |
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L’odyssée
humaine – Les moteurs cachés de notre évolution, "Pour
la Science", Revue scientifique, Numéro spécial 445,
Novembre 2014
En paléontologie humaine, les 15 dernières années ont
été riches en découvertes. A leur lumière, les
scientifiques ont dû revoir pratiquement tous les
chapitres de l'histoire de l'humanité. Pour son numéro
spécial, Pour la Science revient sur l'Odyssée humaine
avec 12 articles de chercheurs internationaux sur les
moteurs cachés de notre évolution. Et toujours les
débats science et société et les rubriques phares du
magazine. La pagination de ce numéro spécial augmente,
de 96 pages, Pour la Science passe à 128 pages !
(...) |
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Reconnaissance survey for Palaeolithic sites in the
Debed River Valley, northern Armenia,
di C. P. Egeland, B.
Gasparian, D. Arakelyan, C. M. Nicholson, A. Petrosyan,
R. Ghukasyan, R. Byerly, "Journal of Field Archaeology",
Volume 39, Issue 4 (November 2014), pp. 370-386
The southern Caucasus is a
critical region for those interested in Palaeolithic
research because of its varied topography and location
at the crossroads of Europe, Africa, and Asia. Modern
Armenia sits at the heart of this area, but has until
now played a small role in broader debates, largely
because of its paucity of well-excavated and well-dated
sites. To improve this situation, a survey was conducted
for Palaeolithic sites along the valley of the Debed
River (Lori Depression, northeastern Armenia).
Twenty-three open-air sites, spanning the Lower through
the Upper Palaeolithic periods, were identified. Most of
the lithic material is of Middle Palaeolithic
manufacture. Upper Palaeolithic material is also well
represented, but only a handful of Lower Palaeolithic
artifacts have been identified. Test excavations at
several sites suggest that they preserve in situ
deposits that may help us to understand the role of the
southern Caucasus in the Palaeolithic occupation of
Eurasia. |
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New
evidence for the Mousterian and Gravettian at Rio Secco
Cave, Italy,
di M. Peresani, M.
Romandini, R. Duches, C. Jéquier, N. Nannini, A.
Pastoors, A. Picin, I. Schmidt, M. Vaquero, G.C. Weniger,
"Journal of Field Archaeology", Volume 39, Issue 4 (November
2014), pp. 401-416
The dearth of evidence for
late Neanderthals in Europe reduces our ability to
understand the demise of their species and the impact of
the biological and cultural changes that resulted from
the spread of anatomically modern humans. In this light,
a recently investigated cave in the northern Adriatic
region at the border between the Italian Alps and the
Great Adriatic Plain provides useful data about the last
Neanderthals between 46·0 and 42·1 ky cal b.p. Their
subsistence is inferred from zooarchaeological remains
and patterns in Middle Palaeolithic lithic technology.
Unexpected evidence of the ephemeral use of the cave
during the early Upper Palaeolithic Gravettian period
shows a change in lithic technology. |
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Acheulean technological behaviour
in the Middle Pleistocene landscape of Mieso (East-Central
Ethiopia),
di I. de la Torre, R. Mora, A. Arroyo, A. Benito-Calvo,
"Journal of Human Evolution", Volume 76, November 2014,
Pages 1–25
The
Mieso valley is a new paleoanthropological sequence
located in East-Central Ethiopia. It contains Middle and
Upper Pleistocene deposits with fossil and lithic
assemblages in stratified deposits. This paper
introduces the Middle Pleistocene archaeological
sequence, attributed to the late Acheulean. Low density
clusters of artefacts suggest short-term use of the
landscape by Acheulean hominins. In Mieso 31, one of the
excavated assemblages, refit sets indicate fragmentation
of the reduction sequences and enable study of the
initial stages of biface manufacture. Mieso 7, also a
stratified site, is primarily characterized by a small
concentration of standardized cleavers, and portrays
another dimension of Acheulean technology, that related
to final stages of use and discard of large cutting
tools. Available radiometric dates place the Mieso
Acheulean around 212 ka (thousands of years) ago, which
would make this sequence among the latest evidence of
the Acheulean in East Africa, in a time span when the
Middle Stone Age is already documented in the region. |
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The geology and chronology of the
Acheulean deposits in the Mieso area (East-Central
Ethiopia),
di A. Benito-Calvo, D. N. Barfod, L. J. McHenry, I. de
la Torre, "Journal of Human Evolution",Volume 76,
November 2014, Pages 26–38
This
paper presents the Quaternary sequence of the Mieso area
of Central-East Ethiopia, located in the piedmont
between the SE Ethiopian Escarpment and the Main
Ethiopian Rift-Afar Rift transition sector. In this
region, a piedmont alluvial plain is terraced at +25 m
above the two main fluvial courses, the Mieso and Yabdo
Rivers. The piedmont sedimentary sequence is divided
into three stratigraphic units separated by
unconformities. Mieso Units I and II contain late
Acheulean assemblages and a weakly consolidated alluvial
sequence, consisting mainly of fine sediments with
buried soils and, to a lesser degree, conglomerates.
Palaeo-wetland areas were common in the alluvial plain,
represented by patches of tufas, stromatolites and clays.
At present, the piedmont alluvial surface is preserved
mainly on a dark brown soil formed at the top of Unit II.
Unit III corresponds to a fluvial deposit overlying Unit
II, and is defined by sands, silty clays and gravels,
including several Later Stone Age (LSA) occurrences.
Three fine-grained tephra levels are interbedded in Unit
I (tuffs TBI and TA) and II (tuff CB), and are usually
spatially-constrained and reworked. Argon/argon
(40Ar/39Ar) dating from tuff TA, an ash deposit
preserved in a palustrine environment, yielded an age of
0.212 ± 0.016 Ma (millions of years ago). This date
places the top of Unit I in the late Middle Pleistocene,
with Acheulean sites below and above tuff TA. Regional
correlations tentatively place the base of Unit I around
the Early-Middle Pleistocene boundary, Unit II in the
late Middle Pleistocene and within the Late Pleistocene,
and the LSA occurrences of Unit III in the Late
Pleistocene–Holocene. |
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Human calcanei from the Middle
Pleistocene site of Sima de los Huesos (Sierra de
Atapuerca, Burgos, Spain),
di A. Pablos, I. Martínez,
C. Lorenzo, N. Sala, A. Gracia-Téllez, J. L. Arsuaga,
"Journal of Human Evolution", Volume 76, November 2014,
Pages 63–76
The
existence of calcanei in the fossil record prior to
modern humans and Neandertals is very scarce. This
skeletal element is fundamental to understanding the
evolution of the morphology of the foot in human
evolution. Here we present and metrically and
comparatively describe 29 calcaneus remains from the
Middle Pleistocene site of Sima de los Huesos (SH)
(Sierra de Atapuerca, Burgos, Spain). These calcanei
belong to 15 individuals (nine adults, two adolescents
and four immature individuals). The metric and
morphological differences in the calcanei among Middle
and Late Pleistocene hominins tend to be subtle. However,
the calcanei from SH are broad and robust with large
articular surfaces and most significantly, exhibit a
very projected sustentaculum tali. A biomechanical and
phylogenetic interpretation is proffered to explain the
observed morphology of these calcanei. It has been
possible to propose tentative sex assignments for the SH
calcanei based on size, using methods similar to those
used to establish sex from the talus bones from SH. The
estimation of stature based on the calcaneus provides a
mean of 175.3 cm for males and 160.6 for females, which
is similar to that obtained using other skeletal parts
from the site. In sum, the SH calcanei are robust with a
proportionally long tubercle and a projected
sustentaculum tali, which are traits shared by
Neandertals. |
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Enamel thickness variation of
deciduous first and second upper molars in modern humans
and Neanderthals,
di C. Fornai, S. Benazzi,
J. Svoboda, I. Pap, K. Harvati, G. W. Weber, "Journal of
Human Evolution", Volume 76, November 2014, Pages 83–91
Enamel
thickness and dental tissue proportions have been
recognized as effective taxonomic discriminators between
Neanderthal and modern humans teeth. However, most of
the research on this topic focused on permanent teeth,
and little information is available for the deciduous
dentition. Moreover, although worn teeth are more
frequently found than unworn teeth, published data for
worn teeth are scarce and methods for the assessment of
their enamel thickness need to be developed. Here, we
addressed this issue by studying the 2D average enamel
thickness (AET) and 2D relative enamel thickness (RET)
of Neanderthal and modern humans unworn to moderately
worn upper first deciduous molars (dm1s) and upper
second deciduous molars (dm2s). In particular, we used
3D μCT data to investigate the mesial section for dm1s
and both mesial and buccal sections for dm2s. Our
results confirmed previous findings of an Neanderthal
derived condition of thin enamel, and thinner enamel in
dm1s than dm2s in both Neanderthal and modern humans. We
demonstrated that the Neanderthal 2D RET indices are
significantly lower than those of modern humans at
similar wear stages in both dm1s and dm2s (p < 0.05).
The discriminant analysis showed that using 2D RET from
dm1 and dm2 sections at different wear stages up to 93%
of the individuals are correctly classified. Moreover,
we showed that the dm2 buccal sections, although
non-conventionally used, might have an advantage on
mesial sections since they distinguish as well as mesial
sections but tend to be less worn. Therefore, the 2D
analysis of enamel thickness is suggested as a means for
taxonomic discrimination between modern humans and
Neanderthal unworn to moderately worn upper deciduous
molars. |
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Lithics of the Late Middle
Palaeolithic: Post MIS 5 technological variability and
its implications,
"Quaternary
International", Volume 350, Pages 1-254 (6 November
2014) - Edited by Huw S. Groucutt and Eleanor M.L.
Scerri
-
Lithics of the late Middle Palaeolithic: Post MIS 5
technological variability and its implications, di Huw
S. Groucutt, Eleanor M.L. Scerri
- First technological comparison of Southern African
Howiesons Poort and South Asian Microlithic industries:
An exploration of inter-regional variability in
microlithic assemblagesOriginal Research Article, di
Laura Lewis, Nimal Perera, Michael Petraglia
- Putslaagte 1 (PL1), the Doring River, and the later
Middle Stone Age in southern Africa's Winter Rainfall
ZoneOriginal Research Article, di Alex Mackay, Alex
Sumner, Zenobia Jacobs, Ben Marwick, Kyla Bluff, Matthew
Shaw
- Another Mousterian Debate? Bordian facies, chaîne
opératoire technocomplexes, and patterns of lithic
variability in the western European Middle and Upper
Pleistocene, di Gilliane F. Monnier, Kele Missal
- Flake morphologies and patterns of core configuration
at the Abric Romaní rock-shelter: A geometric
morphometric approach, di Andrea Picin, Manuel Vaquero,
Gerd-Christian Weniger, Eudald Carbonell
- Late Middle Palaeolithic surface sites occurring on
dated sediment formations in the Thar Desert, di James
Blinkhorn
- The role of edge angle maintenance in explaining
technological variation in the production of Late Middle
Paleolithic bifacial and unifacial tools, di Radu Iovita
- New insights into Final Mousterian lithic production
in western Italy, di Stefano Grimaldi, Fabio Santaniello
- Late Middle Palaeolithic bifacial technologies across
northwest Europe: Typo-technological variability and
trends, di Karen Ruebens
- A Middle Stone Age Paleoscape near the Pinnacle Point
caves, Vleesbaai, South Africa, di Simen Oestmo,
Benjamin J. Schoville, Jayne Wilkins, Curtis W. Marean
- Sink the Mousterian? Named stone tool industries (NASTIES)
as obstacles to investigating hominin evolutionary
relationships in the Later Middle Paleolithic Levant, di
John J. Shea
- Fragmented reduction processes: Middle Palaeolithic
technical behaviour in the Abri du Maras shelter,
southeastern France, di Marie-Hélène Moncel, María Gema
Chacón, Alice La Porta, Paul Fernandes, Bruce Hardy,
Rosalia Gallotti
- Middle Palaeolithic point technology, with a focus on
the site of Tor Faraj (Jordan, MIS 3), di Huw S.
Groucutt
- The contribution of lithic production systems to the
interpretation of Mousterian industrial variability in
south-western France: The example of Combe-Grenal (Dordogne,
France), di Jean-Philippe Faivre, Emmanuel Discamps,
Brad Gravina, Alain Turq, Jean-Luc Guadelli, Michel
Lenoir
- Aterian lithic technology and settlement system in the
Jebel Gharbi, North-Western Libya di Enza E.
Spinapolice, Elena A.A. Garcea |
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European genetic identity may
stretch back 36,000 years,
di A. Gibbons,
"Science-News", 6 November 2014
Europeans carry a motley mix of genes from at least
three ancient sources: indigenous hunter-gatherers
within Europe, people from the Middle East, and
northwest Asians from near the Great Steppe of eastern
Europe and central Asia. One high-profile recent study
suggested that each genetic component entered Europe by
way of a separate migration and that they only came
together in most Europeans in the past 5000 years. Now
ancient DNA from the fossilized skeleton of a short,
dark-skinned, dark-eyed man who lived at least 36,000
years ago along the Middle Don River in Russia presents
a different view: This young man had DNA from all three
of those migratory groups and so was already “pure
European,” says evolutionary biologist Eske Willerslev
of the Natural History Museum of Denmark at the
University of Copenhagen, who led the analysis. In
challenging the multiple migration model, the new genome
data, published online today in Science, suggest that
Europeans today are the descendants of a very old,
interconnected population of hunter-gatherers that had
already spread throughout Europe and much of central and
western Asia by 36,000 years ago. “What is surprising is
this guy represents one of the earliest Europeans, but
at the same time he basically contains all the genetic
components that you find in contemporary Europeans—at
37,000 years ago,” Willerslev says. (...) |
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Palaeolithic settlements
discovered in the Nefud Desert,
2 November 2014
The Nefud Desert is an oval depression in the northern
Arabian Peninsula, known for its red sand, sudden
violent winds, and large crescent-shaped dunes. It is
290 kilometres long, 225 kilometres wide, and sees rain
only once or twice a year. But in antiquity, there were
lakes. Dr Eleanor Scerri of the University of Bordeaux
and her colleagues call them 'palaeo-lakes'. Today these
ancient lakes are only sediments and other features that
tell us that there was once water, but scientists have
also found fossil flora, fauna, and archaeological
features and artefacts. Scerri and her colleagues detail
their discovery of 13 sites associated with palaeo-lake
basins dated to Lower and Middle Palaeolithic times -
from 2.5 million all the way to 30,000 years ago. "One
of the sites, T'is al Ghadah, may feature the earliest
Middle Palaeolithic assemblage of Arabia," they write.
(...) |
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How
we tamed ourselves—and became modern,
di A. Gibbons, "Science"
24 October 2014: Vol. 346 no. 6208 pp. 405-406
Call a man "tame" or "domesticated"
and he's not likely to take it as a compliment. But all
of us, male and female, may have to get used to it: At a
high-level meeting earlier this month, scientists argued
that "self-domestication" was a key process in the
evolution of our species. They noted that with our
reduced jaws, flat faces, and lower male aggression,
humans are to chimps as dogs are to wolves, showing many
of the physical traits that emerge during animal
domestication. The accompanying changes in behavior,
especially among men, might have helped humans evolve
more complex language, live atop each other in cities,
and work together to create sophisticated cultures. No
one set out to domesticate humans, of course. But at the
first-ever symposium on self-domestication of humans,
held at the Salk Institute for Biological Studies,
researchers outlined a set of linked behavioral and
anatomical changes seen both in animals that humans have
tamed and in creatures that have tamed themselves, such
as bonobos. |
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Oldest-known human genome sequenced,
di Ewen Callaway,
"Nature-News", 22 October 2014
A 45,000-year-old leg bone
from Siberia has yielded the oldest genome sequence for
Homo sapiens on record — revealing a mysterious
population that may once have spanned northern Asia. The
DNA sequence from a male hunter-gatherer also offers
tantalizing clues about modern humans’ journey from
Africa to Europe, Asia and beyond, as well as their
sexual encounters with Neanderthals. His kind might have
remained unknown were it not for Nikolai Peristov, a
Russian artist who carves jewellery from ancient mammoth
tusks. In 2008, Peristov was looking for ivory along
Siberia’s Irtysh River when he noticed a bone jutting
from the riverbank. He dug it out and showed it to a
police forensic scientist, who identified it as probably
human. The bone turned out to be a human left femur, and
eventually made it to the Max Planck Institute for
Evolutionary Anthropology in Leipzig, Germany, where
researchers carbon-dated it. “It was quite fossilized,
and the hope was that it might turn out old. We hit the
jackpot,” says Bence Viola, a palaeoanthropologist who
co-led the study of the remains. “It was older than any
other modern human yet dated.” The luck continued when
Viola’s colleagues found that the bone contained
well-preserved DNA, and they sequenced its genome to the
same accuracy as that achieved for contemporary human
genomes (Q. Fu et al.Nature 514, 445–449; 2014).
(...)
· Genome sequence
of a 45,000-year-old modern human from western Siberia,
di Q. Fu et alii,
"Nature", 514, 445–449 (23 October 2014)
· La storia dell'uomo
raccontata da un femore del Paleolitico,
"Le Scienze", 22 ottobre
2014 |
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The
discovery of Homo floresiensis: Tales of the hobbit,
di E. Callaway,
"Nature-News Feature", 22 October 2014
The hobbit team did not
set out to find a new species. Instead, the researchers
were trying to trace how ancient people travelled from
mainland Asia to Australia. At least that was the idea
when they began digging in Liang Bua, a large, cool cave
in the highlands of Flores in Indonesia. The team was
led by archaeologists Mike Morwood and Raden Soejono,
who are now deceased. (...) |
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Human evolution: Small remains still pose big problems,
di C. Stringer, "Nature-Comment",
22 October 2014
In early 2004, the Australian palaeoanthropologist Peter
Brown teasingly e-mailed me pictures of a
strange-looking skull, asking what I thought it was. I
knew that he had been working in east Asia, so I guessed
that the images might represent the first discovery of a
very primitive member of our genus, Homo, from somewhere
like China. Gradually, Brown revealed the even more
astonishing news of the skull's remote location and
recent age. That October, he, Mike Morwood and
colleagues published analyses in this journal with the
controversial proposal that the tiny skull and its
associated skeleton represented a new human species.
They named it Homo floresiensis, which Morwood dubbed 'hobbit',
owing to its diminutive stature — a moniker that the
global press quickly ran with. (...) |
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Early Pleistocene lake formation and hominin origins in
the Turkana–Omo rift,
di C. J. Lepre, "Quaternary
Science Reviews", Volume 102, 15 October 2014, Pages
181–191 Prior
research has correlated the formation of
Plio-Pleistocene lakes in East Africa to global/regional
climate changes and interpreted the lacustrine basins as
significant settings of hominin evolution. Paleo-Lake
Lorenyang from the Turkana–Omo rift is important to
these issues, as its marginal deposits contain some of,
if not the earliest currently known specimens of
Acheulian stone tools and African Homo erectus.
Magnetostratigraphic and sedimentological evidence
indicates that the oldest preserved paleo-Lake Lorenyang
deposits are dated at 2.148–2.128 Ma and derive from the
NW Turkana basin, predating those from the Omo basin by
∼100 kyr and the NE Turkana basin by ∼190 kyr.
Apparently, the lake expanded asynchronously in the rift,
potentially due to a volcano-tectonic influence on the
location of drainage networks, depositional slopes, or
topographic elevation differences within and between the
basins at the time of flooding. The onset of the lake
temporally coincides with the eruption of basalt lava
flows dated to 2.2–2.0 Ma that blocked the southeast
outlet of the Turkana basin. This provides a plausible
mechanism for hydrologic closure and lacustrine basin
formation through volcano-tectonic impounding. It also
points to a non-climatic cause for the initial formation
of paleo-Lake Lorenyang at ∼2.14 Ma. First appearances
for African H. erectus (∼1.87 Ma) and Acheulian tools
(∼1.76 Ma) in the Turkana–Omo rift postdate the lake's
initial formation by about 270 kyr and 380 kyr,
respectively. Such timing differences contrast with
studies that correlate all three to the
400-kyr-eccentricity maximum at 1.8 Ma. Although the
Turkana–Omo rift is just one example, it does provide
alternative insights to views that link climate, hominin
evolution, and lake formation in East Africa. |
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Middle Pleistocene Human Remains from
Tourville-la-Rivière (Normandy, France) and Their
Archaeological Context,
di Jean-Philippe Faivre
et alii, "PLOsONE", October 08, 2014, DOI: 10.1371/journal.pone.0104111
- free access -
Despite numerous sites
of great antiquity having been excavated since the end
of the 19th century, Middle Pleistocene human fossils
are still extremely rare in northwestern Europe. Apart
from the two partial crania from Biache-Saint-Vaast in
northern France, all known human fossils from this
period have been found from ten sites in either Germany
or England. Here we report the discovery of three long
bones from the same left upper limb discovered at the
open-air site of Tourville-la-Rivière in the Seine
Valley of northern France. New U-series and combined
US-ESR dating on animal teeth produced an age range for
the site of 183 to 236 ka. In combination with
paleoecological indicators, they indicate an age toward
the end of MIS 7. The human remains from
Tourville-la-Rivière are attributable to the Neandertal
lineage based on morphological and metric analyses. An
abnormal crest on the left humerus represents a deltoid
muscle enthesis. Micro- and or macro-traumas connected
to repetitive movements similar to those documented for
professional throwing athletes could be origin of
abnormality. (...) |
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Early modern human settlement of
Europe north of the Alps occurred 43,500 years ago in a
cold steppe-type environment,
di P. R. Nigst et alii,
"Proceedings of the National
Academy of Sciences", October 7, 2014, vol.
111, no. 40, pp. 14394-14399
The
first settlement of Europe by modern humans is thought
to have occurred between 50,000 and 40,000 calendar
years ago (cal B.P.). In Europe, modern human remains of
this time period are scarce and often are not associated
with archaeology or originate from old excavations with
no contextual information. Hence, the behavior of the
first modern humans in Europe is still unknown.
Aurignacian assemblages—demonstrably made by modern
humans—are commonly used as proxies for the presence of
fully behaviorally and anatomically modern humans. The
site of Willendorf II (Austria) is well known for its
Early Upper Paleolithic horizons, which are among the
oldest in Europe. However, their age and attribution to
the Aurignacian remain an issue of debate. Here, we show
that archaeological horizon 3 (AH 3) consists of faunal
remains and Early Aurignacian lithic artifacts. By using
stratigraphic, paleoenvironmental, and chronological
data, AH 3 is ascribed to the onset of Greenland
Interstadial 11, around 43,500 cal B.P., and thus is
older than any other Aurignacian assemblage. Furthermore,
the AH 3 assemblage overlaps with the latest directly
radiocarbon-dated Neanderthal remains, suggesting that
Neanderthal and modern human presence overlapped in
Europe for some millennia, possibly at rather close
geographical range. Most importantly, for the first time
to our knowledge, we have a high-resolution
environmental context for an Early Aurignacian site in
Central Europe, demonstrating an early appearance of
behaviorally modern humans in a medium-cold steppe-type
environment with some boreal trees along valleys around
43,500 cal B.P. |
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Tracing our ancestors at the
bottom of the sea,
October 6, 2014
A new European Marine
Board report recommends exploration of sea-submerged
settlements abandoned by our ancestors. Researchers are
studying the remains of prehistoric human settlements
which are now submerged beneath coastal seas. Some of
these drowned sites are tens of thousands of years old.
(...) |
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43,000-year-old modern human settlement in Central
Europe, 2
October 2014 In
1908 the famous Venus of Willendorf was discovered
during an excavation near the Austrian town of Melk. The
statuette has been dated to 30,000 years ago, and is one
of the world's earliest examples of figurative art. Now
a team of archaeologists has dated a number of stone
tools recently excavated from the same site to 43,500
years ago, and identified the tools as belonging to the
Aurignacian culture, making them significantly older
than other known Aurignacian artefacts, which have been
found all over Europe. It is agreed that modern humans
dispersed into Europe, and began to replace Neanderthals,
at least 40,000 years ago. The new research pushes this
date back to a time when temperatures north of the Alps
were cool. (...) |
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Cognitive Requirements for Ochre
Use in the Middle Stone Age at Sibudu, South Africa,
di T. Hodgskiss,
"Cambridge Archaeological Journal", Volume 24, Issue 03,
October 2014, pp 405-428
Ochre
is found at many Middle Stone Age sites and its use is
often associated with enhanced mental abilities and
symbolism, but the links between the visible uses of
ochre and cognition have not been clearly defined. By
establishing the technology and processes involved in
using ochre, one can determine the skill, knowledge and
cognitive abilities required to execute those activities.
This is done here by constructing thought-and-action and
inferential cognitive sequences for the various ochre
activities performed at Sibudu, KwaZulu-Natal, South
Africa. Powder production alone is not an indicator of
complex cognitive processes, although some planning,
foresight and knowledge of materials is required. Some
ochre powder was used in the creation of hafting
adhesives which is a cognitively demanding process
requiring attention-switching, response inhibition,
analogical reasoning and abstract thought. The direct
transfer of ochre powder from an ochre piece to a soft
material through grinding and rubbing requires some
complex thought and action procedures — analogical
reasoning and the ability to multi-task and switch
attention between activities. Scoring a piece of ochre
with a sharp tool does not necessitate enhanced
executive functioning. However, some engravings
demonstrate intentionality and an awareness of space and
symmetry that may imply abstract thought. |
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A
Middle Palaeolithic site in the southern North Sea:
investigating the archaeology and palaeogeography of
Area 240, di
L. Tizzard. A. R. Bicket, J. Benjamin, D. De Loecker,
"Journal of Quaternary Science", Volume 29, Issue 7,
pages 698–710, October 2014
The potential for Middle
Palaeolithic sites to survive beneath the sea in
northern latitudes has been established by intensive
investigation within Area 240, a marine aggregate
licence area situated in the North Sea, 11 km off the
coast of Norfolk, England. The fortuitous discovery of
bifacial handaxes, and Levallois flakes and cores, led
to a major programme of fieldwork and analysis between
2008 and 2013. The artefacts were primarily recovered
from Marine Isotope Stage 8/7 floodplain sediments
deposited between 250 and 200 ka. It is considered that
the hand axes and Levallois products are contemporaneous
in geological terms with taphonomically complex
sedimentary contexts, as observed in several north-west
European sites. The Early Middle Palaeolithic (EMP)
lithics have survived multiple phases of glaciation and
marine transgression. The investigations confirm that
the artefacts are not a ‘chance’ find, but indicate
clear relationships to submerged and buried landscapes
that, although complex, can be examined in detail using
a variety of existing fieldwork and analytical methods.
The palaeogeographical context of the finds also offers
expanded interpretations of the distribution of EMP
hominins in the southern North Sea, not predictable from
onshore archaeological records. |
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Neanderthals from El Salt (Alcoy,
Spain) in the context of the latest Middle Palaeolithic
populations from the southeast of the Iberian Peninsula,
di M. D. Garralda,
B. Galván, C. M. Hernández, C. Mallol, J. A. Gómez, B.
Maureille, "Journal of Human Evolution", Volume 75,
October 2014, Pages 1–15
We
present a bioanthropological study of dental remains
recovered from El Salt Middle Palaeolithic site (Alcoy,
Alicante, Spain). The dental remains were found in a
sedimentary layer representing a calm depositional
environment within a freshwater spring system. The
corresponding archaeological context comprises a Middle
Palaeolithic faunal and lithic assemblage that
represents the last documented evidence of human
occupation at the site, dating to between 47.2 ± 4.4 and
45.2 ± 3.4 ka (thousands of years ago). This evidence is
overlain by an archaeologically sterile deposit dated to
44.7 ± 3.2 ka. Results show that the teeth belong to a
single juvenile or young adult individual with
morphological and metric features falling within the
Neanderthal range of variability, although the
considered traits are not taxonomically highly
discriminant. The reported fossils are representative of
the latest Middle Palaeolithic groups in the region and
may be considered in the ongoing debate on the
disappearance of Neanderthals and the end of the Middle
Palaeolithic. |
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New evidence of early Neanderthal
disappearance in the Iberian Peninsula,
di B. Galván, C. M.
Hernández, C. Mallol, N. Mercier, A. Sistiaga, V. Soler,
"Journal of Human Evolution", Volume 75, October 2014,
Pages 16–27
The
timing of the end of the Middle Palaeolithic and the
disappearance of Neanderthals continue to be strongly
debated. Current chronometric evidence from different
European sites pushes the end of the Middle Palaeolithic
throughout the continent back to around 42 thousand
years ago (ka). This has called into question some of
the dates from the Iberian Peninsula, previously
considered as one of the last refuge zones of the
Neanderthals. Evidence of Neanderthal occupation in
Iberia after 42 ka is now very scarce and open to debate
on chronological and technological grounds. Here we
report thermoluminescence (TL) and optically stimulated
luminescence (OSL) dates from El Salt, a Middle
Palaeolithic site in Alicante, Spain, the archaeological
sequence of which shows a transition from recurrent to
sporadic human occupation culminating in the abandonment
of the site. The new dates place this sequence within
MIS 3, between ca. 60 and 45 ka. An abrupt sedimentary
change towards the top of the sequence suggests a strong
aridification episode coinciding with the last
Neanderthal occupation of the site. These results are in
agreement with current chronometric data from other
sites in the Iberian Peninsula and point towards
possible breakdown and disappearance of the Neanderthal
local population around the time of the Heinrich 5 event.
Iberian sites with recent dates (<40 ka) attributed to
the Middle Palaeolithic should be revised in the light
of these data. |
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Change in raw material selection
and subsistence behaviour through time at a Middle
Palaeolithic site in southern France,
di L. Wilson, C. L. Browne,
"Journal of Human Evolution", Volume 75, October 2014,
Pages 28–39
We
apply a resource selection model to the lithic
assemblages from 11 archaeological layers at a Middle
Palaeolithic site in southern France, the Bau de l’Aubesier.
The model calculates how to weight each of 10 variables
in order to best match the proportions of raw materials
from various potential sources in the lithic assemblages.
We then combine the variables into two sets of five each,
those related to the characteristics of the raw
materials themselves, and those related to the sources
and the terrain around them. Running the model with each
subset shows that the terrain variables always provide a
better match to raw material use than do the raw
material variables taken by themselves, but the best
model is always the overall (10-variable) model. This
means that terrain is most important in every case, but
raw material properties also matter. Comparing the
percentage contributions of each subset within the
overall model, however, shows a clear change in emphasis
in the upper layers versus the lower layers of the site.
In the lower six layers, the percent contribution of the
terrain variables is always greater than that of the raw
material variables, but in the upper five layers the
reverse is true: terrain still matters, but raw material
becomes more important. We also look at faunal and basic
tool typological data, which show a progressive change
through time, as smaller prey become more important (and
large prey less so), and tools and cores proportionally
less abundant in the assemblages in the upper layers. We
suggest that these results reflect a change in
subsistence strategies at the time of a particularly
harsh climate near the end of the Middle Pleistocene,
and that hominin groups using this site continued to use
this new approach throughout the rest of the
Pleistocene. |
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A revised chronology for the
Grotte Vaufrey (Dordogne, France) based on TT-OSL dating
of sedimentary quartz,
di M. Hernandez, N.
Mercier, J. P. Rigaud, J. P. Texier, F. Delpech,
"Journal of Human Evolution", Volume 75, October 2014,
Pages 53–63
Grotte
Vaufrey, located in the Dordogne region of southwestern
France, is well known for its substantial archaeological
sequence containing a succession of Acheulean and
Mousterian occupations. While over the last thirty years
numerous studies have attempted to outline a detailed
chronostratigraphy for this important sequence, the
failure to employ a common chronological framework has
complicated its interpretation. Here, we aim to resolve
these inconsistencies by providing a new chronology for
the site based on luminescence dating. To this end,
thermally-transferred optically stimulated luminescence
(TT-OSL) dates were obtained from eight sediment samples
distributed throughout the sequence, which, when
combined with already available chronological
information, produce a new chronostratigraphic model for
the site. Our results demonstrate that the Typical
Mousterian extends from MIS 7 to MIS 5, while the
earliest Acheulean occupation could be associated with
MIS 8 and may date to as early as MIS 10. When compared
with other regional sequences, the Acheulean levels from
the Grotte Vaufrey provide evidence for one of the
earliest hominin occupations in southwestern France. |
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The pattern of hominin postcranial
evolution reconsidered in light of size-related shape
variation of the distal humerus,
di M. R. Lague, "Journal
of Human Evolution", Volume 75, October 2014, Pages
90–109
Previous research suggests that some hominin postcranial
features do not follow a linear path of increasing
modernization through geological time. With respect to
the distal humerus, in particular, the earliest known
hominin specimens are reportedly among the most modern
in morphology, while some later humeri appear further
removed from the average modern human shape. Although
Plio-Pleistocene humeri vary widely in size, previous
studies have failed to account for size-related shape
variation when making morphometric comparisons. This
study reexamines hominin postcranial evolution in light
of distal humeral allometry. Using two-dimensional
landmark data, the relationship between specimen size
and shape among modern humans is quantified using
multivariate regression and principal components
analysis of size-shape space. Fossils are compared with
modern human shapes expected at a given size, as well as
with the overall average human shape. The null
hypothesis of humeral isometry in modern humans is
rejected. Subsequently, if one takes allometry into
account, the apparent pattern of hominin humeral
evolution does not resemble the pattern described above.
All 14 of the Plio-Pleistocene hominin fossils examined
here share a similar pattern of shape differences from
equivalently-sized modern humans, though they vary in
the extent to which these differences are expressed. The
oldest specimen in the sample (KNM-KP 271;
Australopithecus anamensis) exhibits the least
human-like elbow morphology. Similarly primitive
morphology characterizes all younger species of
Australopithecus as well as Paranthropus robustus. After
2 Ma, a subtly more human-like elbow morphology is
apparent among specimens attributed to early Homo, as
well as among isolated specimens that may represent
either Homo or Paranthropus boisei. This study
emphasizes the need to consider size-related shape
variation when individual fossil specimens are compared
with the average shape of a comparative group,
particularly when specimens fall near an extreme of the
comparative size distribution. |
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Genetic and developmental basis for parallel evolution
and its significance for hominoid evolution,
di P. L. Reno, "Evolutionary
Anthropology", Volume 23, Issue 5, pages 188–200,
September/October 2014
Greater understanding of
ape comparative anatomy and evolutionary history has
brought a general appreciation that the hominoid
radiation is characterized by substantial homoplasy.1–4
However, little consensus has been reached regarding
which features result from repeated evolution. This has
important implications for reconstructing ancestral
states throughout hominoid evolution, including the
nature of the Pan-Homo last common ancestor (LCA).
Advances from evolutionary developmental biology
(evo-devo) have expanded the diversity of model
organisms available for uncovering the morphogenetic
mechanisms underlying instances of repeated phenotypic
change. Of particular relevance to hominoids are data
from adaptive radiations of birds, fish, and even flies
demonstrating that parallel phenotypic changes often use
similar genetic and developmental mechanisms. The
frequent reuse of a limited set of genes and pathways
underlying phenotypic homoplasy suggests that the
conserved nature of the genetic and developmental
architecture of animals can influence evolutionary
outcomes. Such biases are particularly likely to be
shared by closely related taxa that reside in similar
ecological niches and face common selective pressures.
Consideration of these developmental and ecological
factors provides a strong theoretical justification for
the substantial homoplasy observed in the evolution of
complex characters and the remarkable parallel
similarities that can occur in closely related taxa.
Thus, as in other branches of the hominoid radiation,
repeated phenotypic evolution within African apes is
also a distinct possibility. If so, the availability of
complete genomes for each of the hominoid genera makes
them another model to explore the genetic basis of
repeated evolution. |
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Le
site paléolithique des Vaugreniers (Le Muy, Var): un
nouveau faciès épigravettien ancien dans le sud-est de
la France?,
di C. Montoya et alii,
"Quaternaire", vol. 25/2, 2014, pp. 127-145
Le site de plein air des
Vaugreniers (Le Muy, Var) a livré plusieurs témoignages
d’occupations du Paléolithique moyen et supérieur en
contexte alluvial. Répartis en deux locus, la fouille
préventive a mis au jour une petite série moustérienne
dans un paléochenal ainsi que deux niveaux
épigravettiens datés par 14C AMS (ancien et récent). L
’industrie lithique du niveau épigravettien ancien
révèle des caractéristiques techniques inédites dans le
sud-est de la France. |
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Ancient human genome from southern Africa throws light
on our origins,
September 29, 2014
The skeleton of a man who
lived 2,330 years ago in the southernmost tip of Africa
tells us about ourselves as humans, and throws some
light on our earliest common genetic ancestry. The man's
genome was sequenced and shown to be one of the 'earliest
diverged' -- oldest in genetic terms -- found to-date in
a region where modern humans are believed to have
originated roughly 200,000 years ago. (...) |
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Early Levallois technology and the Lower to Middle
Paleolithic transition in the Southern Caucasus,
di D. S. Adler
et alii, "Science", 26 September 2014: Vol. 345 no.
6204 pp. 1609-1613
The Lower to Middle
Paleolithic transition (~400,000 to 200,000 years ago)
is marked by technical, behavioral, and anatomical
changes among hominin populations throughout Africa and
Eurasia. The replacement of bifacial stone tools, such
as handaxes, by tools made on flakes detached from
Levallois cores documents the most important conceptual
shift in stone tool production strategies since the
advent of bifacial technology more than one million
years earlier and has been argued to result from the
expansion of archaic Homo sapiens out of Africa. Our
data from Nor Geghi 1, Armenia, record the earliest
synchronic use of bifacial and Levallois technology
outside Africa and are consistent with the hypothesis
that this transition occurred independently within
geographically dispersed, technologically precocious
hominin populations with a shared technological ancestry. |
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Livre:
Manuel de taphonomie, Denys Christiane, Patou-Mathis
Marylène (sous la dir.)
La taphonomie est est la
science des lois de l'enfouissement. Elle a pour but d'étudier
et de reconstituer les étapes de la formation des sites
paléontologiques et archéologiques. Discipline en plein
essor, elle a su s'entourer de différentes compétences
dans les domaines de la géologie, de l'archéologie, de
la biologie cette science, essayant de comprendre les
agents climatiques, édaphiques, biologiques qui
interviennent lors de la fossilisation et de la
diagénèse, comme la prédation et les actions du climat,
du sol, de l'eau, des racines de plantes, des rongeurs
et des insectes. La dégradation de la composition
organique et minérale des ossements et de celle de
l'ADN, l'altération des outils en pierre, des pollens,
des coquilles et des grottes ornées sont également
abordées. Premier ouvrage en français consacré à la
Taphonomie, avec de nombreux exemples (vertébrés
terrestres, mollusques, grottes ornées...) il est
destiné aux étudiants et aux chercheurs, mais aussi à
tous publics. (...) |
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Ancient human genomes suggest
three ancestral populations for present-day Europeans,
di I. Lazaridis et
alii, "Nature", 513, 409–413 (18 September 2014)
We
sequenced the genomes of a ~7,000-year-old farmer from
Germany and eight ~8,000-year-old hunter-gatherers from
Luxembourg and Sweden. We analysed these and other
ancient genomes1, 2, 3, 4 with 2,345 contemporary humans
to show that most present-day Europeans derive from at
least three highly differentiated populations: west
European hunter-gatherers, who contributed ancestry to
all Europeans but not to Near Easterners; ancient north
Eurasians related to Upper Palaeolithic Siberians3, who
contributed to both Europeans and Near Easterners; and
early European farmers, who were mainly of Near Eastern
origin but also harboured west European hunter-gatherer
related ancestry. We model these populations’ deep
relationships and show that early European farmers had
~44% ancestry from a ‘basal Eurasian’ population that
split before the diversification of other non-African
lineages. |
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A rock engraving made by
Neanderthals in Gibraltar,
di J. Rodríguez-Vidal
et alii, "Proceedings of the National
Academy of Sciences", September 16, 2014, vol. 111, no.
37, pp. 13301-13306
The
production of purposely made painted or engraved designs
on cave walls—a means of recording and transmitting
symbolic codes in a durable manner—is recognized as a
major cognitive step in human evolution. Considered
exclusive to modern humans, this behavior has been used
to argue in favor of significant cognitive differences
between our direct ancestors and contemporary archaic
hominins, including the Neanderthals. Here we present
the first known example of an abstract pattern engraved
by Neanderthals, from Gorham’s Cave in Gibraltar. It
consists of a deeply impressed cross-hatching carved
into the bedrock of the cave that has remained covered
by an undisturbed archaeological level containing
Mousterian artifacts made by Neanderthals and is older
than 39 cal kyr BP. Geochemical analysis of the
epigenetic coating over the engravings and experimental
replication show that the engraving was made before
accumulation of the archaeological layers, and that most
of the lines composing the design were made by
repeatedly and carefully passing a pointed lithic tool
into the grooves, excluding the possibility of an
unintentional or utilitarian origin (e.g., food or fur
processing). This discovery demonstrates the capacity of
the Neanderthals for abstract thought and expression
through the use of geometric forms. |
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Aggiornamento 14 settembre |
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Earliest evidence for the structure of Homo sapiens
populations in Africa,
di E. M.L. Scerri, N. A.
Drake, R. Jennings, H. S. Groucutt, "Quaternary Science
Reviews", Volume 101, 1 October 2014, Pages 207–216
Understanding the
structure and variation of Homo sapiens populations in
Africa is critical for interpreting multiproxy evidence
of their subsequent dispersals into Eurasia. However,
there is no consensus on early H. sapiens demographic
structure, or its effects on intra-African dispersals.
Here, we show how a patchwork of ecological corridors
and bottlenecks triggered a successive budding of
populations across the Sahara. Using a temporally and
spatially explicit palaeoenvironmental model, we found
that the Sahara was not uniformly ameliorated between
∼130 and 75 thousand years ago (ka), as has been stated.
Model integration with multivariate analyses of
corresponding stone tools then revealed several
spatially defined technological clusters which
correlated with distinct palaeobiomes. Similarities
between technological clusters were such that they
decreased with distance except where connected by
palaeohydrological networks. These results indicate that
populations at the Eurasian gateway were strongly
structured, which has implications for refining the
demographic parameters of dispersals out of Africa. |
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Use of Fossil Bryozoans in
Sourcing Lithic Artifacts,
di M. M. Key Jr., P. N.
Wyse Jackson, L. W. Falvey, B. J. Roth, "Geoarchaeology",
Volume 29, Issue 5, pages 397–409, September/October
2014
This
study reviews the occurrence and potential of bryozoans
within lithic artifacts and also sets out a methodology
for their use in sourcing and discusses the advantages
and disadvantages of this approach. We present case
studies from our own research and from the literature on
using bryozoans in sourcing archaeological lithic
artifacts. Fossil bryozoans of different ages and clades
can be effectively used to determine the material source
of lithic artifacts from a variety of prehistoric ages.
The case studies included in this report span the
stratigraphic range of bryozoans from the Ordovician to
the Neogene. The bryozoans came from four different
orders: trepostome, fenestrate, cyclostome, and
cheilostome. The use of these lithic artifacts ranged
back to 25 ka. Although the majority of the fossil
bryozoans were incidental in the artifacts, the
bryozoans were still useful for determining their
original source rock. The improved searchable online
paleontologic databases allow for more efficient use of
fossil bryozoans to constrain the stratigraphic and
paleogeographic distribution of source outcrops.
Although generally underutilized in sourcing prehistoric
lithic artifacts, it is clear that by analyzing
bryozoans, an increased understanding of the lithologic
nature of these materials could be gained by the
archaeological community. |
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A
Spring Forward for Hominin Evolution in East Africa,
di M. O. Cuthbert,
G. M. Ashley, "PLoS ONE", September 10, 2014, DOI:
10.1371/journal.pone.0107358 -
free access -
Groundwater is essential
to modern human survival during drought periods. There
is also growing geological evidence of springs
associated with stone tools and hominin fossils in the
East African Rift System (EARS) during a critical period
for hominin evolution (from 1.8 Ma). However it is not
known how vulnerable these springs may have been to
climate variability and whether groundwater availability
may have played a part in human evolution. Recent
interdisciplinary research at Olduvai Gorge, Tanzania,
has documented climate fluctuations attributable to
astronomic forcing and the presence of paleosprings
directly associated with archaeological sites. Using
palaeogeological reconstruction and groundwater
modelling of the Olduvai Gorge paleo-catchment, we show
how spring discharge was likely linked to East African
climate variability of annual to Milankovitch cycle
timescales. Under decadal to centennial timescales,
spring flow would have been relatively invariant
providing good water resource resilience through long
droughts. For multi-millennial periods, modelled spring
flows lag groundwater recharge by 100 s to 1000 years.
The lag creates long buffer periods allowing hominins to
adapt to new habitats as potable surface water from
rivers or lakes became increasingly scarce. Localised
groundwater systems are likely to have been widespread
within the EARS providing refugia and intense
competition during dry periods, thus being an important
factor in natural selection and evolution, as well as a
vital resource during hominin dispersal within and out
of Africa. (...) |
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New
high-resolution computed tomography data of the Taung
partial cranium and endocast and their bearing on
metopism and hominin brain evolution,
di R. L. Holloway, D. C.
Broadfield, K. J. Carlson, "Proceedings of the National
Academy of Sciences", September 9, 2014 vol.
111 no. 36, pp. 13022-13027
Falk and colleagues [Falk
D, Zollikofer CP, Morimoto N, Ponce de León MS (2012)
Proc Natl Acad Sci U S A 109(22):8467–8470] hypothesized
that selective pressures favored late persistence of a
metopic suture and open anterior fontanelle early in
hominin evolution, and they put an emphasis on the Taung
Child (Australopithecus africanus) as evidence for the
antiquity of these adaptive features. They suggested
three mutually nonexclusive pressures: an “obstetric
dilemma,” high early postnatal brain growth rates, and
neural reorganization in the frontal cortex. To test
this hypothesis, we obtained the first high-resolution
computed tomography (CT) data from the Taung hominin.
These high-resolution image data and an examination of
the hominin fossil record do not support the metopic and
fontanelle features proposed by Falk and colleagues.
Although a possible remnant of the metopic suture is
observed in the nasion–glabella region of the Taung
partial cranium (but not along the frontal crest), this
character state is incongruent with the zipper model of
metopic closure described by Falk and colleagues. Nor do
chimpanzee and bonobo endocast data support the
assertion that delayed metopic closure in Taung is
necessary because of widening (reorganization) of the
prefrontal or frontal cortex. These results call into
question the adaptive value of delaying metopic closure,
and particularly its antiquity in hominin evolution.
Further data from hominoids and hominins are required to
support the proposed adaptive arguments, particularly an
obstetric dilemma placing constraints on neural and
cranial development in Australopithecus. |
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Three-part ancestry for Europeans,
di A. Gibbons, "Science" 5
September 2014: Vol. 345 no. 6201 pp. 1106-1107
For years, the favored
recipe for making a modern European was this: Start
with DNA from a hunter-gatherer whose ancestors lived in
Europe 45,000 years ago, then add genes from an early
farmer who migrated to the continent about 9000 years
ago. An extensive study of ancient DNA now points to a
third ingredient: blood from an Asian nomad who blew
into central Europe perhaps only about 4000 or 5000
years ago. This third major lineage originated somewhere
in northwestern Asia, perhaps on the steppes of western
Asia or in Eastern Europe. This is a "ghost lineage,"
because no pureblood member of this group survives today.
But whoever these people were, their descendants
successfully spread far and wide, for their genes show
up not only in Europeans but also in Native Americans,
according to a talk by paleogeneticist Johannes Krause
of the University of Tübingen in Germany, who spoke at a
biomolecular archaeology meeting last week. Those who
heard the talk in a packed auditorium at the University
of Basel were impressed by the genomic data's high
resolution—it is the largest data set of ancient DNA
ever presented in a single study—even though some aren't
convinced about the exact details. |
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A
rock engraving made by Neanderthals in Gibraltar,
di J.
Rodríguez-Vidal et alii, "Proceedings of the National
Academy of Sciences - Early Edition", September 2, 2014,
DOI: 10.1073/pnas.1411529111 -
free access -
The production of
purposely made painted or engraved designs on cave walls—a
means of recording and transmitting symbolic codes in a
durable manner—is recognized as a major cognitive step
in human evolution. Considered exclusive to modern
humans, this behavior has been used to argue in favor of
significant cognitive differences between our direct
ancestors and contemporary archaic hominins, including
the Neanderthals. Here we present the first known
example of an abstract pattern engraved by Neanderthals,
from Gorham’s Cave in Gibraltar. It consists of a deeply
impressed cross-hatching carved into the bedrock of the
cave that has remained covered by an undisturbed
archaeological level containing Mousterian artifacts
made by Neanderthals and is older than 39 cal kyr BP.
Geochemical analysis of the epigenetic coating over the
engravings and experimental replication show that the
engraving was made before accumulation of the
archaeological layers, and that most of the lines
composing the design were made by repeatedly and
carefully passing a pointed lithic tool into the grooves,
excluding the possibility of an unintentional or
utilitarian origin (e.g., food or fur processing). This
discovery demonstrates the capacity of the Neanderthals
for abstract thought and expression through the use of
geometric forms. (...)
·
Neanderthal 'artwork'
found in Gibraltar cave,
di P. Rincon, BBC news Science & Environment, 1
September 2014
·
Neanderthals made some of
Europe's oldest art,
di E. Callaway
"Nature-news", 01 September 2014
·
I
Neandertal, artisti astratti,
di D. Vergano, 01 settembre 2014
·
L'arte rupestre astratta
dei Neanderthal,
"Le Scienze", 2 settembre 2014 |
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Nuovi
artigli-gioiello per i Neandertal,
di V. Monastero
Uno
studio condotto da un gruppo di ricercatori
dell'Università di Ferrara, guidato da Marco Peresani e
Matteo Romandini costituisce una prova ulteriore del
fatto che i Neandertal fossero dotati di capacità di
astrazione e di ragionamento simbolico. I ricercatori
hanno studiato l'utilizzo sistematico di artigli di
aquila da parte dei Neandertal in Europa, l'ultimo dei
quali, risalente a circa 44-48 mila anni fa (Paleolitico
medio), rinvenuto nell'estate del 2013 all'interno della
Grotta del Rio Secco, sull'altopiano del Pradis (in
provincia di Pordenone). Secondo gli studiosi, questi
artigli – sette quelli rinvenuti finora in Europa -
venivano utilizzati a scopo simbolico. I sei
ritrovamenti precedenti erano avvenuti in Francia nelle
Grotta di Pech de l'Aze, Gigny, Combe-Grenal e Les Fieux
e, in Italia, nella Grotta di Fumane (Veneto). "Gli
artigli non avevano né scopi alimentari né economici",
spiega Matteo Romandini, archeozoologo e tafonomo
dell'Università di Ferrara, co-responsabile dello
studio. "Analisi in corso stanno valutando la presenza
di tracce che confermino che questi artigli veni usati a
scopo di ornamento personale, come fossero gioielli".
"Questa scoperta rappresenta un'ulteriore conferma che i
Neandertal non si limitassero al semplice
soddisfacimento dei loro bisogni alimentari ed
economici, ma che avessero sviluppato capacità
cognitive", continua. Lo studio, condotto in
collaborazione con altre università europee e con il
sostegno del Comune di Clauzetto e del Centro di
Catalogazione e Restauro della Regione Friuli Venezia
Giulia, è stato pubblicato su Plos One. L'immagine
mostra una ricostruzione di un Neandertal alla luce
delle recenti scoperte. |
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Découverte d’une occupation néandertalienne en bord de
Saône,
01/09/14 Une
équipe d’archéologues de l’Inrap fouille, sur
prescription de l’État (Drac Rhône-Alpes), un site du
Paléolithique moyen à Quincieux, à l’occasion des
travaux de l’A466. Après avis de la commission
interrégionale de la recherche archéologique, et dans le
cadre d’une procédure de « découverte exceptionnelle »,
le préfet a prolongé la durée d’intervention de cette
fouille d’un hectare. (...) |
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Musée
départemental de Préhistoire de Solutré: Le site majeur
du solutréen avec une nouvelle muséographie |
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Beneath Still Waters - Multistage Aquatic Exploitation
of Euryale ferox (Salisb.) during the Acheulian,
di N. Goren-Inbar,
Y. Melamed, I. Zohar, K. Akhilesh, S. Pappu, "Internet
Archaeology", Issue 37, September 2014
Remains of the highly
nutritious aquatic plant Fox nut – Euryale ferox Salisb.
(Nymphaeaceae) – were found at the Acheulian site of
Gesher Benot Ya'aqov, Israel. Here, we present new
evidence for complex cognitive strategies of hominins as
seen in their exploitation of E. ferox nuts. We draw on
excavated data and on parallels observed in traditional
collecting and processing practices from Bihar, India.
We suggest that during the early Middle Pleistocene,
hominins implemented multistage procedures comprising
underwater gathering and subsequent processing (drying,
roasting and popping) of E. ferox nuts. Hierarchical
processing strategies are observed in the Acheulian
lithic reduction sequences and butchering of game at
this and other sites, but are poorly understood as
regards the exploitation of aquatic plant resources. We
highlight the ability of Acheulian hominins to resolve
issues related to underwater gathering of E. ferox nuts
during the plant's life cycle and to adopt strategies to
enhance their nutritive value. (...) |
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Science, the Media, and Interpretations of Upper
Paleolithic Figurines,
di A. Nowell, M. L. Chang,
"American Anthropologist" Volume 116, Issue 3, pages
562–577, September 2014
Using the recent discovery
of the Hohle Fels figurine as a catalyst, in this
article we briefly review the history of scholarship
regarding Upper Paleolithic figurines that are often
referred to as “Venus” figurines. We integrate this
review with a critical examination of the assumptions
underlying the “Venus hypothesis”—the perspective that
these artifacts are best understood as sexual objects—based
on the available data from both inside and outside of
the field of Paleolithic archaeology. We suggest that
interpreting the figurines in a purely sexual context
obstructs their objective, scientific study and has
unintended social consequences. Following from this, we
consider why the Venus hypothesis persists in the
popular media and scholarly research despite decades of
reflexive critiques. Finally, building on these
critiques, we argue for the importance of
contextualization in the study of Upper Paleolithic
figurines and discuss new approaches to their study. |
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Gelada feeding ecology in an
intact ecosystem at Guassa, Ethiopia: Variability over
time and implications for theropith and hominin dietary
evolution,
di P. J. Fashing, N. Nguyen, V. V. Venkataraman, J. T.
Kerby, "American Journal of Physical Anthropology",
Volume 155, Issue 1, pages 1–16, September 2014
Recent
evidence suggests that several extinct primates,
including contemporaneous Paranthropus boisei and
Theropithecus oswaldi in East Africa, fed largely on
grasses and sedges (i.e., graminoids). As the only
living primate graminivores, gelada monkeys (Theropithecus
gelada) can yield insights into the dietary strategies
pursued by extinct grass- and sedge-eating primates.
Past studies of gelada diet were of short duration and
occurred in heavily disturbed ecosystems. We conducted a
long-term study of gelada feeding ecology in an intact
Afroalpine ecosystem at Guassa, Ethiopia. Geladas at
Guassa consumed ≥56 plant species, ≥20 invertebrate
species, one reptile species, and the eggs of one bird
species over a 7-year period. The annual diet consisted
of 56.8% graminoid parts, 37.8% forb parts, 2.8%
invertebrates, and 2.6% other items, although geladas
exhibited wide variability in diet across months at
Guassa. Edible forbs were relatively scarce at Guassa
but were strongly selected for by geladas. Tall
graminoid leaf and tall graminoid seed head consumption
correlated positively, and underground food item
consumption correlated negatively, with rainfall over
time. Geladas at Guassa consumed a species-rich diet
dominated by graminoids, but unlike geladas in more
disturbed habitats also ate a diversity of forbs and
invertebrates along with occasional vertebrate prey.
Although graminoids are staple foods for geladas,
underground food items are important “fallback foods.”
We discuss the implications of our study, the first
intensive study of the feeding ecology of the only
extant primate graminivore, for understanding the
dietary evolution of the theropith and hominin putative
graminivores, Theropithecus oswaldi and Paranthropus
boisei. Am J Phys Anthropol 155:1–16, 2014. © 2014 Wiley
Periodicals, Inc. |
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Neanderthal infant and adult
infracranial remains from Marillac (Charente, France),
di M. D. Garralda,
B. Maureille, B. Vandermeersch, "American Journal of
Physical Anthropology", Volume 155, Issue 1, pages
99–113, September 2014
At the
site of Marillac, near the Ligonne River in
Marillac-le-Franc (Charente, France), a remarkable
stratigraphic sequence has yielded a wealth of
archaeological information, palaeoenvironmental data, as
well as faunal and human remains. Marillac must have
been a sinkhole used by Neanderthal groups as a hunting
camp during MIS 4 (TL date 57,600 ± 4,600BP), where
Quina Mousterian lithics and fragmented bones of
reindeer predominate. This article describes three
infracranial skeleton fragments. Two of them are from
adults and consist of the incomplete shafts of a right
radius (Marillac 24) and a left fibula (Marillac 26).
The third fragment is the diaphysis of the right femur
of an immature individual (Marillac 25), the size and
shape of which resembles those from Teshik-Tash and
could be assigned to a child of a similar age. The three
fossils have been compared with the remains of other
Neanderthals or anatomically Modern Humans (AMH).
Furthermore, the comparison of the infantile femora,
Marillac 25 and Teshik-Tash, with the remains of several
European children from the early Middle Ages clearly
demonstrates the robustness and rounded shape of both
Neanderthal diaphyses. Evidence of peri-mortem
manipulations have been identified on all three bones,
with spiral fractures, percussion pits and, in the case
of the radius and femur, unquestionable cutmarks made
with flint implements, probably during defleshing.
Traces of periostosis appear on the fibula fragment and
on the immature femoral diaphysis, although their
aetiology remains unknown. Am J Phys Anthropol
155:99–113, 2014. © 2014 Wiley Periodicals, Inc. |
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Ancient human footprints in
Ciur-Izbuc Cave, Romania,
di D. Webb, M. Robu, O.
Moldovan, S. Constantin, B. Tomus, I. Neag, "American
Journal of Physical Anthropology", Volume 155, Issue 1,
pages 128–135, September 2014
In
1965, Ciur-Izbuc Cave in the Carpathian Mountains of
Romania was discovered to contain about 400 ancient
human footprints. At that time, researchers interpreted
the footprints to be those of a man, woman and child who
entered the cave by an opening which is now blocked but
which was usable in antiquity. The age of the prints
(≈10–15 ka BP) was based partly on their association
with cave bear (Ursus spelaeus) footprints and bones,
and the belief that cave bears became extinct near the
end of the last ice age. Since their discovery, the
human and bear evidence and the cave itself have
attracted spelunkers and other tourists, with the result
that the ancient footprints are in danger of destruction
by modern humans. In an effort to conserve the
footprints and information about them and to reanalyze
them with modern techiques, Ciur-Izbuc Cave was
restudied in summer of 2012. Modern results are based on
fewer than 25% of the originally described human
footprints, the rest having been destroyed. It is
impossible to confirm some of the original conclusions.
The footprints do not cluster about three different
sizes, and the number of individuals is estimated to be
six or seven. Two cases of bears apparently overprinting
humans help establish antiquity, and C-14 dates suggest
a much greater age than originally thought.
Unfortunately, insufficient footprints remain to measure
movement variables such as stride length. However,
detailed three-dimensional mapping of the footprints
does allow a more precise description of human movements
within the cave. Am J Phys Anthropol 155:128–135, 2014.
© 2014 Wiley Periodicals, Inc. |
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News from the north-east fringe of
Neanderthal Europe: recent work at Khotylevo 1 (Bryansk
Oblast, Russia),
di A. Ocherednoi, L.
Vishnyatsky, E. Voskresenskaya, P. Nehoroshev, "Antiquity
Project Gallery", Issue 341, September 2014
Khotylevo 1, situated on the right bank of the River
Desna some 10km north-west of Bryansk (N53o25', E34o07';
Figure 1) is one of the northernmost Middle Palaeolithic
(MP) sites in Europe and one of the richest in Eastern
Europe. Excavated in the 1960s by F.M. Zavernyaev from
the Bryansk Regional Museum, the site yielded thousands
of flint artefacts, including numerous bifacial tools
associated with a number of stratified contexts (Zavernyaev
1978). The chronology and depositional history of these
contexts, however, remained unclear. As a result, in
2009, the Institute for the History of Material Culture
of the Russian Academy of Sciences resumed fieldwork at
Khotylevo 1 and neighbouring MP sites (Betovo and
Korshevo). Following publication of the project’s
preliminary results (Ocherednoi et al. 2014), we have
obtained important new evidence for Khotylevo 1,
including AMS radiocarbon dates and some highly
diagnostic flint tools, shedding important light on both
the age and nature of the MP assemblages. (...) |
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New prehistoric sites in the
southern Rub’ al-Khali desert, Oman,
di J. I. Rose, Y. H.
Hilbert, "Antiquity Project Gallery", Issue 341,
September 2014
The
archaeology of the Rub’ al-Khali desert in Dhofar,
southern Oman, is virtually unknown. The exception is a
number of lithic scatters on interdunal gravels and at
the edges of ancient palaeolakes recorded by geological
surveyors in the early 1970s (Pullar 1974). These
assemblages have been the fodder for considerable debate.
Initially misclassified as North African Aterian (McClure
1994) and Levantine Pre-Pottery Neolithic (e.g.
Dreschler 2007), recent work has shown that they belong
to the ‘Nejd Leptolithic’ tradition, a local facies
dated to between c. 13 000 and 7000 years ago (Hilbert
et al. 2012; Charpentier & Crassard 2013). During winter
2012, the Ministry of Heritage and Culture in Oman
commissioned an expedition to Ramlat Fasad, near the
modern village of al-Hashman in the southern Rub’
al-Khali, Governorate of Dhofar, to further assess the
temporal and geographical extent of past human
habitation in this region. (...) |
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The Latest Middle Palaeolithic
sites in the Middle Nile Valley,
di M. Osypińska, P.
Osypiński, "Antiquity Project Gallery", Issue 341,
September 2014
During
survey in 1998–2003, on the left bank of the Nile around
Affad in Sudan (Figure 1), many Palaeolithic sites were
identified. Testing in 2003 revealed undisturbed surface
assemblages of lithic artefacts alongside animal bone
remains (Osypinski et al. 2011). Since 2012, a research
project run by the Institute of Archaeology and
Ethnology of the Polish Academy of Sciences has further
investigated these sites, supported by a grant from the
Polish National Science Centre (UMO-2011/01/D/HS3/04125)
to enable absolute dating using OSL. As well as evidence
of flint working, the sites have yielded relics of
lightweight organic structures demarcating functionally
differentiated zones within these Palaeolithic camps.
Mineralised animal bone remains indicate that the
ecological niche inhabited and exploited at this time
was a wetland on the banks of a river with cyclically
rising and subsiding water levels. (...) |
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"Antiquity",
Volume 088, Issue 341, September 2014
-
The arboreal origins of human
bipedalism,
di S. K.S. Thorpe, J. M. McClymont, R. H. Crompton, p.
906
- Human bipedalism and the
importance of terrestriality,
di I. C. Winder, G. C.P.
King, M. H. Devès, G. N. Bailey, p. 915
- Unreasonable expectations,
di B. Wood, p. 917
- Ignoring Ardipithecus in an
origins scenario for bipedality is…lame,
di T. D. White, C. Owen
Lovejoy, G. Suwa, p. 919
- When the ancestors were arboreal,
di B. Senut, p. 921
- Adaptive diversity: from the
trees to the ground,
di S. Elton, p. 923
- Putting flesh on to hominin
bones, di S.
K.S. Thorpe, J. M. McClymont, R. H. Crompton, p. 924 |
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The place of the Neanderthals in
hominin phylogeny,
di S. White, J. A.J.
Gowlett, M. Grove, "Journal of Anthropological
Archaeology",Volume 35, September 2014, Pages 32–50
Debate
over the taxonomic status of the Neanderthals has been
incessant since the initial discovery of the type
specimens, with some arguing they should be included
within our species (i.e. Homo sapiens neanderthalensis)
and others believing them to be different enough to
constitute their own species (Homo neanderthalensis).
This synthesis addresses the process of speciation as
well as incorporating information on the differences
between species and subspecies, and the criteria used
for discriminating between the two. It also analyses the
evidence for Neanderthal–AMH hybrids, and their
relevance to the species debate, before discussing
morphological and genetic evidence relevant to the
Neanderthal taxonomic debate. The main conclusion is
that Neanderthals fulfil all major requirements for
species status. The extent of interbreeding between the
two populations is still highly debated, and is
irrelevant to the issue at hand, as the Biological
Species Concept allows for an expected amount of
interbreeding between species. |
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Socio-economic organization of
Final Paleolithic societies: New perspectives from an
aggregation site in Western France,
di N. Naudinot, J.
Jacquier, "Journal of Anthropological Archaeology",Volume
35, September 2014, Pages 177–189
Overlooked in larger European syntheses for some time,
northwestern France now plays an important role in a
dynamic research program investigating the very end of
the Lateglacial in Western Europe. The discovery of the
well-preserved open-air site of La Fosse has allowed for
significant advances in our understanding of different
aspects of the Younger Dryas-Holocene transition in this
region. This homogenous lithic assemblage adds further
precision to the Lateglacial chrono-cultural sequence
and provides essential new information for investigating
techno-economic changes that appeared during this period.
A techno-functional study of the lithic material
combined with a spatial analysis of artifact
distribution provides insights concerning the site’s
function. Several lines of evidence also shed light on
occupation duration, activities carried out on-site, and
the likely composition of the groups who occupied the
site. The combination of the above lead us to interpret
La Fosse as a large residential site. Following this, we
propose a new mobility and land-use model for
hunter-gatherer groups from the Younger Dryas-Preboreal
transition in which La Fosse functioned as an
aggregation site. This model confirms several previous
hypotheses emphasizing the logistical character of
mobility strategies of these societies. Finally, this
scenario adds further details and precision concerning
both the status and connections between different groups
of sites within a complex socio-economic system. |
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A place in time: Situating Chauvet
within the long chronology of symbolic behavioral
development,
di G. von Petzinger, A.
Nowell, "Journal of Human Evolution", Volume 74,
September 2014, Pages 37–54
Since
the discovery of the Grotte Chauvet (Ardèche, France) in
the mid-1990s, there has been a debate regarding the
accuracy of assigning this site to the Aurignacian
period. The main argument stems from a perceived lack of
agreement between the radiocarbon age of the imagery
(>32,000 years BP [before present]) and its stylistic
complexity and technical sophistication, which some
believe are more typical of the later Upper Paleolithic.
In this paper we first review the evidence for symbolic
behavior among modern humans during the Aurignacian in
order to explore the question of whether Chauvet's
images are anachronistic. Then, using a database of
non-figurative signs found in Paleolithic parietal art,
we undertake a detailed comparison between Chauvet's
corpus of signs and those found in other French Upper
Paleolithic caves. While we conclude that there is
substantial evidence to support an Aurignacian date for
Grotte Chauvet, we also suggest that it may be time to
revisit some of the cultural boundaries that are
currently in use in Paleolithic archaeology. |
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Technological behaviors in
Paleolithic foragers. Testing the role of resharpening
in the assemblage organization,
di J. I. Morales, J. M.
Vergès, "Journal of Archaeological Science", Volume 49,
September 2014, Pages 302–316
This
paper describes the evaluation, based on archaeological
materials, of the role that resharpening plays in the
continuum of stone-tool reduction. We define a
multi-evidence-based approach that combines use-wear
intensity and location, traces that could be related to
hafting and the distribution of mineral residue. By
combining these methods, we have observed a minimum
resharpening ratio of 52% in the selected end-scraper
sample. If one takes into account ethnographically
obtained information about end-scraper management, this
result is an unexpectedly low value. Dynamics of
mobility, technological organization and raw material
availability causes high variability in the
archaeological visibility and characteristics of lithic
remains. Our results are in line with a technology
organized wholly or partially on the basis of expediency,
in which tools are not curated for more than the time
taken to complete the activity or the length of the
occupation. Tools that were not exhausted were abandoned
at the site, leading to recycling behaviors in periodic
site reoccupations. |
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Short, but repeated Neanderthal
visits to Teixoneres Cave (MIS 3, Barcelona, Spain): a
combined analysis of tooth microwear patterns and
seasonality,
di C. Sánchez-Hernández,
F. Rivals, R. Blasco, J. Rosell, "Journal of
Archaeological Science", Volume 49, September 2014,
Pages 317–325
A new
approach combining two proxies is presented with the aim
to provide valuable data to better understand the
patterns of human occupations in Palaeolithic sites. We
employed the analysis of tooth microwear patterns
combined with an estimation of the seasonality through
tooth eruption and wear patterns of the ungulates. Each
proxy brings different types of information. The
variability in tooth microwear patterns allows for the
estimation of the duration of occupational events at a
site while the estimation of seasonality permits to
situate temporally these events through the year. The
research involved four Middle Palaeolithic
archaeological levels from Teixoneres Cave (Moià, Spain).
The combined analysis allowed for the identification of
different patterns of occupation at the site: (1) short
seasonal occupations at a single season such as in level
IIa at the beginning of the summer and in level IIb in
autumn and early winter, (2) repeated seasonal
occupations of the site at all seasons such as in the
underlying level IIIa, and (3) repeated seasonal
settlements at two specific seasons (summer and winter)
as in level IIIb. Our results show congruence between
the two methods which imply that combined approaches
would allow a better knowledge about the occupations
that occurred in the cave, in particular about the
duration of Neanderthal occupations. |
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The role of raw material
differences in stone tool shape variation: an
experimental assessment,
di M. I. Eren, C. I. Roos,
B. A. Story, N. von Cramon-Taubadel, S. J. Lycett,
"Journal of Archaeological Science", Volume 49,
September 2014, Pages 472–487
Lithic
raw material differences are widely assumed to be a
major determining factor of differences in stone tool
morphology seen across archaeological sites, but the
security of this assumption remains largely untested.
Two different sets of raw material properties are
thought to influence artifact form. The first set is
internal, and related to mechanical flaking properties.
The second set is external, namely the form (size, shape,
presence of cortex) of the initial nodule or blank from
which flakes are struck. We conducted a replication
experiment designed to determine whether handaxe
morphology was influenced by raw materials of
demonstrably different internal and external properties:
flint, basalt, and obsidian. The knapper was instructed
to copy a “target” model handaxe, produced by a
different knapper, 35 times in each toolstone type (n =
105 handaxes). On each experimental handaxe, 29
size-adjusted (scale-free) morphometric variables were
recorded to capture the overall shape of each handaxe in
order to compare them statistically to the model. Both
Principal Components Analysis (PCA) and a Multivariate
Analysis of Variance (MANOVA) were used to determine if
raw material properties were a primary determinate of
patterns of overall shape differences across the
toolstone groups. The PCA results demonstrated that
variation in all three toolstones was distributed evenly
around the model target form. The MANOVA of all 29
size-adjusted variables, using two different tests,
showed no statistically significant differences in
overall shape patterns between the three groups of raw
material. In sum, our results show that assuming the
primacy of raw material differences as the predominant
explanatory factor in stone tool morphology, or
variation between assemblages, is unwarranted. |
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Correlation of volcanic ash layers
between the Early Pleistocene Acheulean sites of Isinya,
Kariandusi, and Olorgesailie, Kenya,
di H. Durkee, F. H. Brown,
"Journal of Archaeological Science", Volume 49,
September 2014, Pages 510–517
Olorgesailie, Kariandusi, and Isinya are archeological
sites with Acheulean artifacts in or on the flanks of
the southern Rift Valley of Kenya. 40Ar/39Ar ages on
feldspar from tuffs in the Olorgesailie Formation of 992
± 39 ka (Member 1), 974 ± 7 ka (Member 5), and 747 ± 6
ka (Member 9), 662 ± 4 ka (Member 10), and 601 ± 3 ka (Member
11) bracket most of the Acheulean sites there. A 40Ar/39
age on a tuff in the Kariandusi sequence is 977 ± 10 ka,
and both sites are associated with thick diatomite
deposits. No age control has been available for the site
of Isinya. Electron microprobe analyses of glass from
volcanic ash layers from these sites allow
tephrostratigraphic correlations between them. Here we
report that samples from Kariandusi below the
archeological levels correlate with samples in Member 4
and Member 2 at Olorgesailie (992 ka–974 ka). Samples
from a volcanic ash at Isinya above the archeological
site correlate with an ash layer in Olorgesailie Member
4, showing that these artifacts are >974 ka, providing
the first age control for the artifacts at Isinya. The
correlation from Olorgesailie to Kariandusi shows that
the diatomites at those sites were deposited at the same
time ∼120 km apart but now differ in elevation by ∼700
m. Chemical similarity with obsidians from localities in
the Naivasha region suggest that some of the ash layers
may originate from that area. |
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The Middle Paleolithic site of
Cuesta de la Bajada (Teruel, Spain): a perspective on
the Acheulean and Middle Paleolithic technocomplexes in
Europe, di
M. Santonja et alii, "Journal of Archaeological
Science", Volume 49, September 2014, Pages 556–571
Here we
present a pluridisciplinary study of Cuesta de la Bajada
site (Teruel, Spain). Our findings show that the site
contains an early Middle Paleolithic assemblage similar
to other European early Middle Paleolithic industries,
allowing us to evaluate the coexistence of this
industrial tradition with the Acheulean technocomplex in
southwest Europe. The process of lithic production at
Cuesta de la Bajada represents a technology focused on
debitage, the application of technical concepts such as
ramified production sequences, and the recycling of
flakes via the resharpening of tools and exhausted cores.
This site was formed around a pond not far from a river
and contains remains of large macrofauna other than
equids and cervids. Taphonomic analysis highlights the
abundance of cut marks on bones, and supports the
hypothesis of selective hunting by hominids. The
numerical ages derived from the combination of ESR, OSL
and AAR dating methods indicate that the archaeological
site was very likely formed around the MIS 8-MIS 9. The
appearance of Middle Paleolithic industries in Europe
could represents the autochthonous development of a
technocomplex distinctly different from the Acheulean,
characterised by chaînes opératoires of debitage and a
progressive increase of Levallois technology and
retouched tools. These results suggest that there is a
clear coexistence of assemblages with Acheulean and
Middle Paleolithic industries during the last third of
the Middle Pleistocene at least in the Iberian Peninsula. |
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Changing Environments and Movements through Transitions:
Paleoanthropological and Prehistorical Research in
Ethiopia A Tribute to Prof. Mohammed Umer,
Edited by David Pleurdeau,
Katja Douze and Asfawossen Asrat, "Quaternary
International", Volume 343, Pages 1-178 (1 September
2014)
-
Changing environments and movements through transitions:
Paleoanthropological and Prehistorical Research in
Ethiopia: A Tribute to Prof. Mohammed Umer,
di K. Douze, A.
Asrat, D. Pleurdeau
-
Magnetostratigraphic study of the Melka Kunture
archaeological site (Ethiopia) and its chronological
implications,
di E. Tamrat, N. Thouveny,
M. Taieb, J.P. Brugal
- Garba XIII (Melka Kunture, Upper
Awash, Ethiopia): A new Acheulean site of the late Lower
Pleistocene,
di R. Gallotti, J. P.
Raynal, D. Geraads, M. Mussi
-
Garba III (Melka Kunture, Ethiopia): a MSA site with
archaic Homo sapiens remains revisited,
di M. Mussi, F. Altamura,
R. Macchiarelli, R. T. Melis, E. E. Spinapolice
- A new chrono-cultural marker for
the early Middle Stone Age in Ethiopia: The tranchet
blow process on convergent tools from Gademotta and
Kulkuletti sites,
di K. Douze
-
Late Stone Age variability in the Main Ethiopian Rift:
New data from the Bulbula River, Ziway–Shala basin,
di C. Ménard, F.
Bon, A. Dessie, L. Bruxelles, K. Douze, F. X. Fauvelle,
L. Khalidi, J. Lesur, R. Mensan
- The Hargeisan revisited: Lithic
industries from shelter 7 of Laas Geel, Somaliland and
the transition between the Middle and Late Stone Age in
the Horn of Africa,
di X. Gutherz, A. Diaz, C.
Ménard, F. Bon, K. Douze, V. Léa, J. Lesur, D.
Sordoillet
-
Stratigraphic and spatial distribution of ochre and
ochre processing tools at Porc-Epic Cave, Dire Dawa,
Ethiopia, di
D. E. Rosso, F. d'Errico, J. Zilhão
- Microliths in the Middle and
Later Stone Age of eastern Africa: New data from
Porc-Epic and Goda Buticha cave sites, Ethiopia,
di A. Leplongeon
-
Cultural change or continuity in the late MSA/Early LSA
of southeastern Ethiopia? The site of Goda Buticha, Dire
Dawa area,
di D. Pleurdeau, E. Hovers, Z. Assefa, A. Asrat, O.
Pearson, J. J. Bahain, Y. Man Lam
- Survey and explorations of caves
in southeastern Ethiopia: Middle Stone Age and Later
Stone Age archaeology and Holocene rock art,
di Z. Assefa, D.
Pleurdeau, F. Duquesnoy, E. Hovers, O. Pearson, A. Asrat,
C. T/Tsion, Y. Man Lam
- The advent of herding in the
Horn of Africa: New data from Ethiopia, Djibouti and
Somaliland,
di J. Lesur, E. A. Hildebrand, G. Abawa, X. Gutherz
-
Refitting evidence for the stratigraphic integrity of
the Kudu Koppie Early to Middle Stone Age site, northern
Limpopo Province, South Africa,
di T. A. Sumner, K. Kuman |
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Deglaciation and Human Colonization of Northern Europe,
di B. T. Wygal, S.
M. Heidenreich, "Journal of World Prehistory", August
2014, Volume 27, Issue 2, pp 111-144
Few places worldwide
experienced Late Glacial ecological shifts as drastic as
those seen in the areas covered by, or adjacent to, the
massive ice sheets that blanketed much of the northern
hemisphere. Among the most heavily glaciated regions,
northern Europe underwent substantial ecological shifts
during and after the Last Glacial Maximum. The
climatically unstable Pleistocene–Holocene transition
repeatedly transformed far-northern Europe, placing it
among the last regions to be colonized by Paleolithic
societies. As such, it shares paleoenvironmental and
archaeological analogues with other once glaciated areas
where human populations, entrenched in periglacial
environments prior to glacier retreat, spread into newly
deglaciated territories. Perhaps most significant for
northern Europeans were post-glacial effects of the
Younger Dryas and Preboreal periods, as shifts in
climate, plant, and animal communities elicited several
adaptive responses including innovation, exploration,
and the eventual settlement of once glaciated landscapes.
This paper is a detailed review of existing
archaeological and paleoecological evidence pertaining
to the Late Upper Paleolithic of northern Europe, and
offers theoretical observations on human colonization
models and ecological responses to large-scale stadial
and interstadial events. |
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Exploring the impact of climate
variability during the Last Glacial Maximum on the
pattern of human occupation of Iberia,
di A. Burke et alii,
"Journal of Human Evolution", Volume 73, August 2014,
Pages 35–46
The
Last Glacial Maximum (LGM) was a global climate event,
which had significant repercussions for the spatial
distribution and demographic history of prehistoric
populations. In Eurasia, the LGM coincides with a
potential bottleneck for modern humans and may mark the
divergence date for Asian and European populations (Keinan
et al., 2007). In this research, the impact of climate
variability on human populations in the Iberian
Peninsula during the Last Glacial Maximum (LGM) is
examined with the aid of downscaled high-resolution (16
× 16 km) numerical climate experiments. Human
sensitivity to short time-scale (inter-annual) climate
variability during this key time period, which follows
the initial modern human colonisation of Eurasia and the
extinction of the Neanderthals, is tested using the
spatial distribution of archaeological sites. Results
indicate that anatomically modern human populations
responded to small-scale spatial patterning in climate
variability, specifically inter-annual variability in
precipitation levels as measured by the standard
precipitation index. Climate variability at less than
millennial scale, therefore, is shown to be an important
component of ecological risk, one that played a role in
regulating the spatial behaviour of prehistoric human
populations and consequently affected their social
networks. |
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An
Experimental Investigation of the Functional Hypothesis
and Evolutionary Advantage of Stone-Tipped Spears,
di J. Wilkins, B.
J. Schoville, K. S. Brown, "PLoS ONE", August 27, 2014,
DOI: 10.1371/journal.pone.0104514
- free
access -
Stone-tipped weapons were a significant innovation for
Middle Pleistocene hominins. Hafted hunting technology
represents the development of new cognitive and social
learning mechanisms within the genus Homo, and may have
provided a foraging advantage over simpler forms of
hunting technology, such as a sharpened wooden spear.
However, the nature of this foraging advantage has not
been confirmed. Experimental studies and ethnographic
reports provide conflicting results regarding the
relative importance of the functional, economic, and
social roles of hafted hunting technology. The
controlled experiment reported here was designed to test
the functional hypothesis for stone-tipped weapons using
spears and ballistics gelatin. It differs from previous
investigations of this type because it includes a
quantitative analysis of wound track profiles and
focuses specifically on hand-delivered spear technology.
Our results do not support the hypothesis that tipped
spears penetrate deeper than untipped spears. However,
tipped spears create a significantly larger inner wound
cavity that widens distally. This inner wound cavity is
analogous to the permanent wound cavity in ballistics
research, which is considered the key variable affecting
the relative ‘stopping power’ or ‘killing power’ of a
penetrating weapon. Tipped spears conferred a functional
advantage to Middle Pleistocene hominins, potentially
affecting the frequency and regularity of hunting
success with important implications for human adaptation
and life history. (...) |
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New
high-resolution computed tomography data of the Taung
partial cranium and endocast and their bearing on
metopism and hominin brain evolution,
di R. L. Holloway, D. C.
Broadfield, K. J. Carlson, "Proceedings of the National
Academy of Sciences - Early Edition", August 25, 2014,
DOI: 10.1073/pnas.1402905111 -
free
access -
Falk and colleagues [Falk
D, Zollikofer CP, Morimoto N, Ponce de León MS (2012)
Proc Natl Acad Sci U S A 109(22):8467–8470] hypothesized
that selective pressures favored late persistence of a
metopic suture and open anterior fontanelle early in
hominin evolution, and they put an emphasis on the Taung
Child (Australopithecus africanus) as evidence for the
antiquity of these adaptive features. They suggested
three mutually nonexclusive pressures: an “obstetric
dilemma,” high early postnatal brain growth rates, and
neural reorganization in the frontal cortex. To test
this hypothesis, we obtained the first high-resolution
computed tomography (CT) data from the Taung hominin.
These high-resolution image data and an examination of
the hominin fossil record do not support the metopic and
fontanelle features proposed by Falk and colleagues.
Although a possible remnant of the metopic suture is
observed in the nasion–glabella region of the Taung
partial cranium (but not along the frontal crest), this
character state is incongruent with the zipper model of
metopic closure described by Falk and colleagues. Nor do
chimpanzee and bonobo endocast data support the
assertion that delayed metopic closure in Taung is
necessary because of widening (reorganization) of the
prefrontal or frontal cortex. These results call into
question the adaptive value of delaying metopic closure,
and particularly its antiquity in hominin evolution.
Further data from hominoids and hominins are required to
support the proposed adaptive arguments, particularly an
obstetric dilemma placing constraints on neural and
cranial development in Australopithecus. (...) |
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Stone tools point to diversity of traditions among early
humans, 23
August 2014 The
biggest ever comparative study of stone tools dating to
between 130,000 and 75,000 years ago found in the region
between sub-Saharan Africa and Eurasia shows marked
differences in the way stone tools were made, reflecting
a diversity of cultural traditions. The study identified
at least four distinct populations, each relatively
isolated from each other with their own different
cultural characteristics. Researchers took over 300,000
measurements of stone tools from 17 archaeological sites
across North Africa, including the Sahara, and combined
the stone tool data with a model of the North African
environment during that period which showed that the
Sahara was then a patchwork of savannah, grasslands and
water, interspersed with desert. They also mapped out
known ancient rivers and major lakes. They were then
able to draw new inferences on the contexts in which the
ancient populations made and used their tools, showing
how early populations of modern humans dispersed across
the Sahara along the ancient rivers and watercourses.
(...) |
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The
timing and spatiotemporal patterning of Neanderthal
disappearance,
di T. Higham et alii,
"Nature", 512, 306–309 (21 August 2014)
The timing of Neanderthal disappearance and the extent
to which they overlapped with the earliest incoming
anatomically modern humans (AMHs) in Eurasia are key
questions in palaeoanthropology. Determining the
spatiotemporal relationship between the two populations
is crucial if we are to understand the processes, timing
and reasons leading to the disappearance of Neanderthals
and the likelihood of cultural and genetic exchange.
Serious technical challenges, however, have hindered
reliable dating of the period, as the radiocarbon method
reaches its limit at ~50,000 years ago. Here we apply
improved accelerator mass spectrometry C14 techniques to
construct robust chronologies from 40 key Mousterian and
Neanderthal archaeological sites, ranging from Russia to
Spain. Bayesian age modelling was used to generate
probability distribution functions to determine the
latest appearance date. We show that the Mousterian
ended by 41,030–39,260 calibrated years BP (at 95.4%
probability) across Europe. We also demonstrate that
succeeding ‘transitional’ archaeological industries, one
of which has been linked with Neanderthals (Châtelperronian),
end at a similar time. Our data indicate that the
disappearance of Neanderthals occurred at different
times in different regions. Comparing the data with
results obtained from the earliest dated AMH sites in
Europe, associated with the Uluzzian technocomplex,
allows us to quantify the temporal overlap between the
two human groups. The results reveal a significant
overlap of 2,600–5,400 years (at 95.4% probability).
This has important implications for models seeking to
explain the cultural, technological and biological
elements involved in the replacement of Neanderthals by
AMHs. A mosaic of populations in Europe during the
Middle to Upper Palaeolithic transition suggests that
there was ample time for the transmission of cultural
and symbolic behaviours, as well as possible genetic
exchanges, between the two groups.
·
Riscritta la fine dei Neandertal,
di A. Danti, "National
Geographic Italia", 21 agosto 2014
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Evolved developmental homeostasis
disturbed in LB1 from Flores, Indonesia, denotes Down
syndrome and not diagnostic traits of the invalid
species Homo floresiensis,
di M. Henneberg, R. B.
Eckhardt, S. Chavanaves, K. J. Hsü, "Proceedings of the
National Academy of Sciences", August 19, 2014, vol.
111, no. 33, pp. 11967-11972
- free access -
Human
skeletons from Liang Bua Cave, Flores, Indonesia, are
coeval with only Homo sapiens populations worldwide and
no other previously known hominins. We report here for
the first time to our knowledge the occipitofrontal
circumference of specimen LB1. This datum makes it
possible to link the 430-mL endocranial volume of LB1
reported by us previously, later confirmed independently
by other investigators, not only with other human
skeletal samples past and present but also with a large
body of clinical data routinely collected on patients
with developmental disorders. Our analyses show that the
brain size of LB1 is in the range predicted for an
individual with Down syndrome (DS) in a normal
small-bodied population from the geographic region that
includes Flores. Among additional diagnostic signs of DS
and other skeletal dysplasiae are abnormally short
femora combined with disproportionate flat feet. Liang
Bua Cave femora, known only for LB1, match interlimb
proportions for DS. Predictions based on corrected LB1
femur lengths show a stature normal for other H. sapiens
populations in the region. (...)
·
Strong words over a 'Hobbit',
di C. Woolston, "Nature-Research
highlights", 512, 235 (21 August 2014) |
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Land Snails as a Diet
Diversification Proxy during the Early Upper
Palaeolithic in Europe,
di J. Fernández-López de
Pablo, E. Badal, C. Ferrer García, A. Martínez-Ortí, A.
Sanchis Serra, "PLoS ONE", August 20, 2014, DOI:
10.1371/journal.pone.0104898
-
free
access -
Despite
the ubiquity of terrestrial gastropods in the Late
Pleistocene and Holocene archaeological record, it is
still unknown when and how this type of invertebrate
resource was incorporated into human diets. In this
paper, we report the oldest evidence of land snail
exploitation as a food resource in Europe dated to
31.3-26.9 ka yr cal BP from the recently discovered site
of Cova de la Barriada (eastern Iberian Peninsula).
Mono-specific accumulations of large Iberus alonensis
land snails (Ferussac 1821) were found in three
different archaeological levels in association with
combustion structures, along with lithic and faunal
assemblages. Using a new analytical protocol based on
taphonomic, microX-Ray Diffractometer (DXR) and
biometric analyses, we investigated the patterns of
selection, consumption and accumulation of land snails
at the site. The results display a strong mono-specific
gathering of adult individuals, most of them older than
55 weeks, which were roasted in ambers of pine and
juniper under 375°C. This case study uncovers new
patterns of invertebrate exploitation during the
Gravettian in southwestern Europe without known
precedents in the Middle Palaeolithic nor the
Aurignacian. In the Mediterranean context, such an early
occurrence contrasts with the neighbouring areas of
Morocco, France, Italy and the Balkans, where the
systematic nutritional use of land snails appears
approximately 10,000 years later during the
Iberomaurisian and the Late Epigravettian. The
appearance of this new subsistence activity in the
eastern and southern regions of Spain was coeval to
other demographically driven transformations in the
archaeological record, suggesting different
chronological patterns of resource intensification and
diet broadening along the Upper Palaeolithic in the
Mediterranean basin. (...) |
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Neanderthals: Bone technique
redrafts prehistory,
di E. Callaway, "Nature-news",
20 August 2014
Neanderthals and humans
lived together in Europe for thousands of years,
concludes a timeline based on radiocarbon dates from 40
key sites across Europe. The results1, published today
in Nature, may help to end a century-old deadlock over
the demise of the Neanderthals and their relationship to
humans. The researchers used 196 radiocarbon dates of
organic remains to show that Neanderthals disappeared
from Europe around 40,000 years ago, but still long
after humans arrived in the continent. “Humans and
Neanderthals were living contemporaneously for quite
some period of time in different parts of Europe,” says
Tom Higham, an archaeologist at the University of
Oxford, UK, who led the study. The long overlap provided
plenty of time for cultural exchange and interbreeding,
he adds. Exactly what happened 30,000–50,000 years ago
still vexes archaeologists because the period is right
at the limit of accurate radiocarbon dating. The
technique is based on measuring the steady loss of
radioactive carbon-14 molecules in organic remains. But
after 30,000 years, 98% of the isotope is gone and
younger carbon molecules are starting to infiltrate
bones, making remains seem younger than they are. This
means that dates for the final Neanderthals and for the
first human occupations of Europe have been unreliable,
fomenting the debate. But over the past decade, Higham
and his team have developed techniques that provide more
accurate readings in bones up to 55,000 years old (see
Nature 485, 27–29; 2012). First, they use a chemical
pretreatment to remove the contaminating carbon from the
collagen in bones, then they measure the minuscule
amounts of radiocarbon using a particle accelerator.
(...) |
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Spain tests limited visits to Altamira cave,
6 August 2014
The cave of Altamira in
northern Spain contains some of the world's finest
examples of Palaeolithic art - bisons, horses and
mysterious signs painted and carved into the limestone
as much as 22,000 years ago. In 2002, when algae-like
mould started to appear on some paintings, the cave was
closed to the public, but this year Altamira has been
partially reopened. Since late February, five random
visitors per week, clad in protective suits, have been
allowed inside the cave. However, some scientists who
studied Altamira and supported its closure have been
upset by this experiment and the possibility of the
cave's reopening, regarding both as politically
motivated. Altamira was first discovered in 1879 by an
amateur botanist and archaeologist, Marcelino Sanz de
Sautuola, during an exploratory visit with his daughter.
For decades, his find was mostly dismissed as fake. But
in 1902 a French study confirmed that its striking
black-and-red paintings were prehistoric, turning the
cave into a major tourism destination. By the 1970s,
Altamira was attracting more than 150,000 people per
year. The site was closed in 1979, and later reopened to
just 8,500 visitors per year. In 2002, the cave was
completely closed, and visitors sent to a nearby museum
containing an exact replica of part of the cave,
including its main chamber. In 2013, the replica cave
welcomed 250,000 visitors. The scientists who oppose any
kind of reopening argue that the presence of people
alters temperature, humidity and carbon dioxide levels,
helping spread microbial colonisation on the walls and
ceiling, while the added air currents erode wall and
sediment surfaces. Lascaux, in southwestern France, was
long ago closed to the public after suffering serious
fungal damage. Muriel Mauriac, the curator of Lascaux,
said she was following developments at Altamira. "I
trust the Spanish authorities will ultimately take the
right decision," she said. Both Altamira and Lascaux are
on Unesco's list of World Heritage sites. |
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The emergence of the acheulean in
East Africa – international workshop, Rome, “La
Sapienza” University,
September 12–13, 201, di
M. Mussi, R. Gallotti, "Evolutionary Anthropology",
Volume 23, Issue 4, pages 126–127, July/August 2014 |
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Ice
age lion figurine: Ancient fragment of ivory belonging
to 40,000 year old animal figurine unearthed,
July 30, 2014
Archaeologists have found an ancient fragment of ivory
belonging to a 40,000 year old animal figurine. Both
pieces were found in the Vogelherd Cave in southwestern
Germany, which has yielded a number of remarkable works
of art dating to the Ice Age. The mammoth ivory figurine
depicting a lion was discovered during excavations in
1931. The new fragment makes up one side of the
figurine’s head. (...) |
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Acheuléen
- Moustérien, "L'Anthropologie",
Volume 118, Issue 4, Pages 391-478 (September–October
2014)
- Le Mode 1 en Italie entre
hétérogénéité et géofacts : le cas de la redéfinition
technologique de l’industrie lithique du site de Bel
Poggio, di
K. Niang-
Variabilité de l’Acheuléen de
plein air entre Rhône et Loire (France),
di M. H. Moncel, M.
Arzarello, A. Theodoropoulou, Y. Boulio
-
Découverte d’une industrie du Paléolithique inférieur en
bordure de la commune de Nice, au Vallon obscur à
Saint-Isidore,
di D. Cauche, S. Khatib,
E. Desclaux, L. Combaud
-
Frettes (Haute-Saône, France) : un gisement de plein-air
du paléolithique moyen, premiers résultats,
di A. Lamotte, G.
Huguenin, M. Campy, J. L. Deherripont, J. Detrey, D.
Morin, H. Corbeaux |
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Human occupation of Iberia prior
to the Jaramillo magnetochron (>1.07 Myr),
di J. Garcia, K.
Martínez, G. Cuenca-Bescós, E. Carbonell, "Quaternary
Science Reviews", Volume 98, 15 August 2014, Pages 84–99
The
first migration out of Africa undertaken by the genus
Homo is documented in Georgia at 1.8 Myr (Dmanisi) and
some 0.4 Myr afterwards in the Middle East (’Ubeidiya).
However, the debate on when the European continent was
populated for the first time remains open. The first
human presence in Europe prior to the Jaramillo subchron
(1.07–0.99 Myr) is evidenced at Fuente Nueva 3 and
Barranco León D (Orce) and at Sima del Elefante (Atapuerca),
an occupation that seems to have continued through the
Jaramillo at Gran Dolina TD3–4 and TD5 (Atapuerca), at
Vallparadís (Barcelona), and up to the Matuyama–Brunhes
boundary at Gran Dolina TD6. Even so, those who still
defend a ‘short chronology’ espouse an intermittent
early population limited to the Mediterranean area,
delaying the first occupation until after the Jaramillo.
These hypotheses fail to explain what factors were
behind the absence of population in Europe prior to this
period, bearing in mind that there were populations of
hominins at the gates of Europe between 1 and 0.5 Myr
before the first archaeological record documented in
Western Europe. Paleomagnetic analyses of the
archaeological sites are rarely able to detect the
Jaramillo subchron due to its short duration, while the
radiometric dating methods (U-series/ESR) usually
applied are limited in the accuracy they can achieve for
the chronologies in question. These limitations make it
necessary to depend on the biostratigraphy of small and
large mammals to ascertain with precision the time of
the first colonization of the continent. Accordingly, in
the present article we discuss the chronological data
from the older Iberian archaeological sites using
biostratigraphic data to establish an archaeological
sequence that demonstrates the expansion of the first
hominin occupation of Southern Europe prior to Jaramillo. |
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Neanderthal Origin of the Haplotypes Carrying the Functional
Variant Val92Met in the MC1R in Modern Humans,
di Q. Ding et alii, "Molecular
Biology and Evolution", Volume 31, Issue 8, 8 agosto 2014,
pp. 1994-2003 Skin
color is one of the most visible and important phenotypes of
modern humans. Melanocyte-stimulating hormone and its
receptor played an important role in regulating skin color.
In this article, we present evidence of Neanderthal
introgression encompassing the melanocyte-stimulating
hormone receptor gene MC1R. The haplotypes from Neanderthal
introgression diverged with the Altai Neanderthal 103.3 ka,
which postdates the anatomically modern human–Neanderthal
divergence. We further discovered that all of the putative
Neanderthal introgressive haplotypes carry the Val92Met
variant, a loss-of-function variant in MC1R that is
associated with multiple dermatological traits including
skin color and photoaging. Frequency of this Neanderthal
introgression is low in Europeans (∼5%), moderate in
continental East Asians (∼30%), and high in Taiwanese
aborigines (60–70%). As the putative Neanderthal
introgressive haplotypes carry a loss-of-function variant
that could alter the function of MC1R and is associated with
multiple traits related to skin color, we speculate that the
Neanderthal introgression may have played an important role
in the local adaptation of Eurasians to sunlight intensity. |
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Carnivore activity in the Sima de los Huesos (Atapuerca,
Spain) hominin sample,
di N. Sala, J. L. Arsuaga, I. Martínez, A. Gracia-Téllez,
"Quaternary Science Reviews", Volume 97, 1 August 2014,
Pages 71–83 The
Sima de los Huesos (SH) site is the largest accumulation
of human remains from the Middle Pleistocene known to
date. Studies in the last two decades have proposed
different hypotheses to explain carnivore activity in
the SH human sample. This study provides new data in
order to test these different interpretations, and
therefore to understand the role of the carnivores in
site formation at SH. Carnivores are usually not the
origin of large accumulations of hominin fossils in the
Eurasian record. The results show that marks of
carnivore activity in the SH sample appear very
infrequently, which we interpret as indicating that
carnivore activity was very sporadic at the site. This
is in stark contrast with previous studies. The
comparison of bone modification patterns at SH to
actualistic carnivore data allows us to suggest that
bears were likely to have been the carnivore responsible
for the modification observed on both human and bear
fossils. |
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Lithic Microwear Method: Standardisation, Calibration
and Innovation,
"Journal of Archaeological Science", Edited by Adrian A.
Evans, Harry J. Lerner, Danielle A. Macdonald and W.
James Stemp, Volume 48, Pages 1-170 (August 2014)
- Standardization,
calibration and innovation: a special issue on lithic
microwear method, di A. A. Evans,
H. Lerner, D. A. Macdonald, W. J. Stemp, P. C. Anderson
- On the importance of
blind testing in archaeological science: the example
from lithic functional studies, di
A. A. Evans
- A review of
quantification of lithic use-wear using laser
profilometry: a method based on metrology and fractal
analysis, di W. J. Stemp
- The application of
focus variation microscopy for lithic use-wear
quantification, di D. A. Macdonald
- Scanning Electron and
Optical Light Microscopy: two complementary approaches
for the understanding and interpretation of usewear and
residues on stone tools, di A.
Borel, A. Ollé, J. M. Vergès, R. Sala
- The use of sequential
experiments and SEM in documenting stone tool microwear,
di A. Ollé, J. M. Vergès
- Projectile impact
fractures and launching mechanisms: results of a
controlled ballistic experiment using replica Levallois
points, di Radu Iovita, Holger
Schönekeß, S. Gaudzinski-Windheuser, F. Jäger
- Testing a taphonomic
predictive model of edge damage formation with Middle
Stone Age points from Pinnacle Point Cave 13B and Die
Kelders Cave 1, South Africa, di
B. J. Schoville
- Discriminating wild vs
domestic cereal harvesting micropolish through laser
confocal microscopy, di J. J.
Ibáñez, J. E. González-Urquijo, J. Gibaja
- Ground stone use-wear
analysis: a review of terminology and experimental
methods, di J. L. Adams
- Ground stones: a
synthesis of the use-wear approach, di Laure Dubreuil,
di D. Savage
- Projectiles and the
abuse of the use-wear method in a search for impact,
di V. Rots, H. Plisson
- Science and
interpretation in microwear studies,
di A. L. Van Gijn |
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Neanderthal Epigenome,
di Z. Zorich, "Archaeology
Magazine", July/August 2014
Modern humans share some 99.7 percent of our DNA with
Neanderthals. They are our closest evolutionary cousins,
but the differences between us run deeper than that 0.3
percent. Much of what distinguishes the two groups is
actually the result of how and when genes are expressed
and regulated—essentially, turned on and off. Similar,
or even identical, stretches of DNA can produce vastly
different traits, such as longer limbs or smaller brains,
depending on how and when certain genes are actively
producing protein. The study of these processes is known
as epigenetics. (...) |
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Temporal labyrinths
of eastern Eurasian Pleistocene humans,
di X. J. Wu, I. Crevecoeur, W. Liu, S.
Xing, E. Trinkaus,
"Proceedings of the National Academy of Sciences", July 22, 2014, vol. 111 no. 29, pp.
10509-10513
One of the
morphological features that has been identified as
uniquely derived for the western Eurasian Neandertals
concerns the relative sizes and positions of their
semicircular canals. In particular, they exhibit a
relatively small anterior canal, a relatively larger
lateral one, and a more inferior position of the
posterior one relative to the lateral one. These
discussions have not included full paleontological data
on eastern Eurasian Pleistocene human temporal
labyrinths, which have the potential to provide a
broader context for assessing Pleistocene Homo trait
polarities. We present the temporal labyrinths of four
eastern Eurasian Pleistocene Homo, one each of Early (Lantian
1), Middle (Hexian 1), and Late (Xujiayao 15)
Pleistocene archaic humans and one early modern human (Liujiang
1). The labyrinths of the two earlier specimens and the
most recent one conform to the proportions seen among
western early and recent modern humans, reinforcing the
modern human pattern as generally ancestral for the
genus Homo. The labyrinth of Xujiayao 15 is in the
middle of the Neandertal variation and separate from the
other samples. This eastern Eurasian labyrinthine
dichotomy occurs in the context of none of the
distinctive Neandertal external temporal or other
cranial features. As such, it raises questions regarding
possible cranial and postcranial morphological
correlates of Homo labyrinthine variation, the use of
individual “Neandertal” features for documenting
population affinities, and the nature of late archaic
human variation across Eurasia. |
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Livre:
"Représentation de l’intimité féminine" di J.P. Duhard &
B. - G. Delluc – Préface Y. Coppens
Un livre entièrement
consacré à un sujet aussi spécialisé il fallait oser l'écrire...
et le publier ! Un travail et un inventaire minitieux a
permis aux auteurs de repertorier pas moins de 241
vulves du paléolithique en France. Gravées, sculptées,
dessinées, modelées les auteurs ont rassemblé l'ensemble
des représentations quelles soient souvent très
schématiques, et parfois assez détaillées. Avec
cet ouvrage, à réserver aux spécialistes de l'art
paléolithique, vous saurez ou retrouver ces vulves
cachées au fond des infractruosités de la roche, gravés
sur un baton percé, sculptées sur un bloc de calcaire.
(...) |
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Evidence of late Gelasian dispersal of African fauna at
Coste San Giacomo (Anagni Basin, central Italy): Early
Pleistocene environments and the background of early
human occupation in Europe,
di L. Bellucci, F. Bona,
P. Corrado, D. Magri, I. Mazzini, F. Parenti, G. Scardia,
R. Sardella, "Quaternary Science Reviews", Volume 96, 15
July 2014, Pages 72–85
Since the late 70s, the
Early Pleistocene (Gelasian) site of Coste San Giacomo (Anagni
Basin, central Italy) has been known amongst
palaeontologists for its diverse vertebrate fauna.
During the last 5 years, new excavations and the
drilling of a 46-m-deep core have provided novel pieces
of information. Palaeomagnetic data, pollen and small
vertebrates analyses are presented here for the first
time and combined with the updated list of the large
vertebrates and ostracod analysis in a multidisciplinary
perspective. Large and small mammals, pollen and
ostracod analyses have allowed an integrated
palaeoenvironmental reconstruction of the sedimentary
sequence, depicting the evolution of the alluvial plain
in the surrounding landscape. Moreover,
magnetostratigraphy, pollen and small mammal
biochronological data have confirmed the position of the
Coste San Giacomo Faunal Unit, focusing the possible age
of the mammal assemblage around 2.1 Ma, in a reversed
phase before the base of the Olduvai chron. In
particular, the occurrence of the large vole Mimomys
pliocaenicus has important biochronological significance.
The Coste San Giacomo site offers a unique opportunity
to investigate the faunal and environmental changes that
occurred in Mediterranean Europe during the Early
Pleistocene, coinciding with major climatic changes at a
global scale. The occurrence of taxa such as
Hippopotamus sp. in the assemblage provides evidence of
early dispersal events of African taxa prior to the
early Homo diffusion into Europe. |
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The
origins and persistence of Homo floresiensis on Flores:
biogeographical and ecological perspectives,
di R. W. Dennella,
J. Louys, H. J. O'Regan, D. M. Wilkinson, "Quaternary
Science Reviews", Volume 96, 15 July 2014, Pages 98–107
The finding of
archaeological evidence predating 1 Ma and a small
hominin species (Homo floresiensis) on Flores,
Indonesia, has stimulated much research on its origins
and ancestry. Here we take a different approach and
examine two key questions – 1) how did the ancestors of
H. floresiensis reach Flores and 2) what are the
possibilities for estimating the likelihood of hominin
persistence for over 1 million years on a small island?
With regard to the first question, on the basis of the
biogeography we conclude that the mammalian, avian, and
reptilian fauna on Flores arrived from a number of
sources including Java, Sulawesi and Sahul. Many of the
terrestrial taxa were able to float or swim (e.g.
stegodons, giant tortoises and the Komodo dragon), while
the rodents and hominins probably accidentally rafted
from Sulawesi, following the prevailing currents. The
precise route by which hominins arrived on Flores cannot
at present be determined, although a route from South
Asia through Indochina, Sulawesi and hence Flores is
tentatively supported on the basis of zoogeography. With
regards to the second question, we find the
archaeological record equivocal. A basic energetics
model shows that a greater number of small-bodied
hominins could persist on Flores than larger-bodied
hominins (whether H. floresiensis is a dwarfed species
or a descendent of an early small-bodied ancestor is
immaterial here), which may in part explain their
apparent long-term success. Yet the frequent tsunamis
and volcanic eruptions in the region would certainly
have affected all the taxa on the island, and at least
one turnover event is recorded, when Stegodon sondaari
became extinct. The question of the likelihood of
persistence may be unanswerable until we know much more
about the biology of H. floresiensis. |
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Hominin reactions to herbivore distribution in the Lower
Palaeolithic of the Southern Levant,
di M. Devès, D. Sturdy, N.
Godet, G. C.P. Kinga, G. N. Bailey, "Quaternary Science
Reviews", Volume 96, 15 July 2014, Pages 140–160
We explore the
relationship between the edaphic potential of soils and
the mineral properties of the underlying geology as a
means of mapping the differential productivity of
different areas of the Pleistocene landscape for large
herbivores. These factors strongly control the health of
grazing animals irrespective of the particular types of
vegetation growing on them, but they have generally been
neglected in palaeoanthropological studies in favour of
a more general emphasis on water and vegetation, which
provide an incomplete picture. Taking the Carmel–Galilee–Golan
region as an example, we show how an understanding of
edaphic potential provides insight into how animals
might have exploited the environment. In order to
simplify the analysis, we concentrate on the Lower
Palaeolithic period and the very large animals that
dominate the archaeofaunal assemblages of this period.
Topography and the ability of soils to retain water also
contribute to the differential productivity and
accessibility of different regions and to patterns of
seasonal movements of the animals, which are essential
to ensure a supply of healthy fodder throughout the year,
especially for large animals such as elephants, which
require substantial regions of good grazing and browsing.
Other animals migrating in groups have similar needs.
The complex topography of the Southern Levant with
frequent sudden and severe changes in gradient, and a
wide variety of landforms including rocky outcrops,
cliffs, gorges, and ridges, places major limits on these
patterns of seasonal movements. We develop methods of
mapping these variables, based on the geology and our
substantial field experience, in order to create a
framework of landscape variation that can be compared
with the locations and contents of archaeological sites
to suggest ways in which early hominins used the
variable features of the landscape to target animal prey,
and extend the analysis to the consideration of smaller
mammals that were exploited more intensively after the
disappearance of the elephants. We consider some of the
ways in which this regional-scale approach can be
further tested and refined, and advocate the development
of such studies as an essential contribution to
understanding the wider pattern of hominin dispersal. |
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Having the stomach for it: a contribution to Neanderthal
diets?, di
L. T. Buck, C. B. Stringer, "Quaternary Science Reviews",
Volume 96, 15 July 2014, Pages 161–167
Due to the central
position of diet in determining ecology and behaviour,
much research has been devoted to uncovering Neanderthal
subsistence strategies. This has included indirect
studies inferring diet from habitat reconstruction,
ethnographic analogy, or faunal assemblages, and direct
methods, such as dental wear and isotope analyses.
Recently, studies of dental calculus have provided
another rich source of dietary evidence, with much
potential. One of the most interesting results to come
out of calculus analyses so far is the suggestion that
Neanderthals may have been eating non-nutritionally
valuable plants for medicinal reasons. Here we offer an
alternative hypothesis for the occurrence of non-food
plants in Neanderthal calculus based on the modern human
ethnographic literature: the consumption of herbivore
stomach contents. |
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Il
più antico resto umano d’Italia,
14 luglio 2014
Nel sito archeologico di Isernia La Pineta, risalente a
circa 600 mila anni fa, è stato rinvenuto un dente di
bambino che, allo stato attuale delle ricerche,
rappresenta il più antico resto umano della Penisola
Italiana. Si tratta di un primo incisivo superiore
sinistro da latte di un bambino deceduto all’età di
circa 5-6 anni. Il dente mostra caratteristiche
particolari che non si ritrovano negli altri reperti
rinvenuti in Europa, seppur riconducibili ad un ampio
contesto cronologico. Da questi si discosta perché più
gracile e meno bombato. (...)
·
Il più antico resto umano d’Italia rinvenuto nel sito
paleolitico di La Pineta di Isernia grazie agli scavi
condotti da Unife e dalla Soprintendenza per i Beni
Archeologici del Molise,
Università degli Studi di Ferrara |
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RIP for a key Homo
species?,
di M. Balter,
"Science" 11 July 2014: Vol. 345 no. 6193 p. 129
The hominin Homo heidelbergensis, which
lived between about 800,000 and 200,000 years ago, has
long been considered a candidate for the common ancestor
of Neandertals and modern humans. But the species is
controversial, because whereas some researchers think it
lived in Europe, Africa, and Asia, others see it as a
European species only (and give other names to similar
hominins on other continents). At a meeting in the
southern French village of Tautavel, where a face and
partial skull of this presumed species were found in a
nearby cave in 1971, researchers debated its role in
human evolution—and whether it actually existed as a
discrete species. Resolving the debate is key to
understanding the evolution of our own species, Homo
sapiens. |
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Environmental and Cultural Dynamics in Western and
Central Europe during the Upper Pleistocene, "Quaternary
International", Edited by Jean-Philip Brugal, Oliver
Bignon-Lau and Jean-Christophe Castel, Volume 337, Pages
1-256 (9 July 2014)
- Environment and climate
during MIS 7 and their implications for the late Middle
Pleistocene hominins: The contribution of Mollet cave,
Serinyà, Girona, northeastern Iberian Peninsula,
di J. M. López-García, Hugues-Alexandre Blain,
R. Julià, J. Maroto
-The ungulate assemblage from layer A9 at
Grotta di Fumane, Italy: A zooarchaeological
contribution to the reconstruction of Neanderthal
ecology, di M. Romandini, N. Nannini, A. Tagliacozzo,
M. Peresani
-
Possible evidence of mammoth hunting at the Neanderthal
site of Spy (Belgium),
di M. Germonpré, M. Udrescu, E. Fiers
- Environment during the
Middle to Late Palaeolithic transition in southern
France: The archaeological sequence of Tournal Cave (Bize-Minervois,
France), di P. Magniez, N. Boulbes
-
Ungulate biomass fluctuations endured
by Middle and Early Upper Paleolithic societies (SW
France, MIS 5-3): The contributions of modern analogs
and cave hyena paleodemography,
di E. Discamps
- Not one but two mammoth hunting
strategies in the Gravettian of the Pavlov Hills area (southern
Moravia), di A. Brugère
- Weichselian Upper Pleniglacial
environmental variability in north-western Europe
reconstructed from terrestrial mollusc faunas and its
relationship with the presence/absence of human
settlements, di O.
Moine
- Hunting practices targeting large
mammal communities in the Paris Basin in the Upper
Palaeolithic, di O. Bignon-Lau
-
What about the
Broad Spectrum Revolution? Subsistence strategy of
hunter–gatherers in Southeast France between 20 and 8 ka
BP, di M. Rillardon, J. P. Brugal
-
Wood resource exploitation by
Cantabrian Late Upper Palaeolithic groups (N Spain)
regarding MIS 2 vegetation dynamics,
di P. Uzquiano
-
Occurrence of whale barnacles in Nerja Cave
(Málaga, southern Spain): Indirect evidence of whale
consumption by humans in the Upper Magdalenian,
di E. Álvarez-Fernández
et alii
- Reconstructing carcass processing related to elk (Alces
alces) exploitation during the Late Mesolithic: The case
of Zamostje 2 (Central Russia),
di R.
Moubarak-Nahra, J. C. Castel, M. Besse
- The Epipaleolithic of the Caucasus after the Last
Glacial Maximum, di L. V.
Golovanova, V. B. Doronichev, N. E. Cleghorn, M. A.
Koulkova, T. V. Sapelko, M. S. Shackley, Yu. N. Spasovskiy
- Taphonomic
implications for the Late Mousterian of South-West
Europe at Esquilleu Cave (Spain),
di J. Yravedra, A. Gómez-Castanedo
- Sir Arthur Keith's Legacy:
Re-discovering a lost collection of human fossils,
di I. De Groote, S. M. Bello, R. Kruszynski,
T. Compton, C. Stringer
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Evolution of early Homo: An integrated biological
perspective,
di S. C. Antón,
R. Potts, L. C. Aiello, "Science", 4 July 2014: Vol. 345
no. 6192
Integration of
evidence over the past decade has revised understandings
about the major adaptations underlying the origin and
early evolution of the genus Homo. Many features
associated with Homo sapiens, including our large linear
bodies, elongated hind limbs, large energy-expensive
brains, reduced sexual dimorphism, increased carnivory,
and unique life history traits, were once thought to
have evolved near the origin of the genus in response to
heightened aridity and open habitats in Africa. However,
recent analyses of fossil, archaeological, and
environmental data indicate that such traits did not
arise as a single package. Instead, some arose
substantially earlier and some later than previously
thought. From ~2.5 to 1.5 million years ago, three
lineages of early Homo evolved in a context of habitat
instability and fragmentation on seasonal,
intergenerational, and evolutionary time scales. These
contexts gave a selective advantage to traits, such as
dietary flexibility and larger body size, that
facilitated survival in shifting environments.
·
Timeline of human origins revised: New synthesis of
research links changing environment with Homo's
evolutionary adaptability,
"ScienceDaily" July 3, 2014 |
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Dmanisi, un gisement préhistorique unique,
Juillet - Août 2014
Le site de Dmanisi est
situé dans le Caucase (République de Géorgie), à 85 km
au sud-ouest de la ville de Tbilissi et à 1000 mètres d’altitude.
Le gisement se trouve sous les ruines d’une ville
médiévale, sur un éperon rocheux de presque 100 mètres
de haut. Les coulées de lave à l’origine de cette
avancée sont parfaitement datées ; c’est ce qui rend le
site de Dmanisi incontournable et presque
révolutionnaire. (...) |
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Mandibular
development in Australopithecus robustus,
di Z. Cofran, "American Journal of
Physical Anthropology", Volume 154, Issue 3, pages
436–446, July 2014
Australopithecus robustus has a distinct mandibular
anatomy, with a broad and deep corpus and a tall,
relatively upright ramus. How this anatomy arose through
development is unknown, as gross mandibular size and
shape change have not been thoroughly examined
quantitatively in this species. Herein, I investigate A.
robustus mandibular growth by comparing its ontogenetic
series with a sample of recent humans, examining
age-related size variation in 28 linear measurements.
Resampling is used to compare the amount of proportional
size change occurring between tooth eruption stages in
the small and fragmentary A. robustus sample, with that
of a more complete human skeletal population.
Ontogenetic allometry of corpus robusticity is also
assessed with least squares regression. Results show
that nearly all measurements experience greater average
increase in A. robustus than in humans. Most notably, A.
robustus corpus breadth undergoes a spurt of growth
before eruption of M1, likely due in part to delayed
resorption of the ramus root on the lateral corpus.
Between the occlusion of M1 and M2, nearly all
dimensions experience greater proportional size change
in A. robustus. Nested resampling analysis affirms that
this pattern of growth differences between species is
biologically significant, and not a mere byproduct of
the fossil sample size. Some species differences are
likely a function of postcanine megadontia in A.
robustus, although the causes of other differences are
less clear. This study demonstrates an important role of
the postnatal period for mandibular shape development in
this species. Am J Phys Anthropol 154:436–446, 2014. ©
2014 Wiley Periodicals, Inc. |
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Sound archaeology: terminology, Palaeolithic cave art
and the soundscape,
di R. Till, "World
Archaeology", Volume 46, Issue 3, 2014, pp. 292-304
This article is focused on
the ways that terminology describing the study of music
and sound within archaeology has changed over time, and
how this reflects developing methodologies, exploring
the expectations and issues raised by the use of
differing kinds of language to define and describe such
work. It begins with a discussion of music archaeology,
addressing the problems of using the term ‘music’ in an
archaeological context. It continues with an examination
of archaeoacoustics and acoustics, and an emphasis on
sound rather than music. This leads on to a study of
sound archaeology and soundscapes, pointing out that it
is important to consider the complete acoustic ecology
of an archaeological site, in order to identify its
affordances, those possibilities offered by invariant
acoustic properties. Using a case study from northern
Spain, the paper suggests that all of these
methodological approaches have merit, and that a project
benefits from their integration. |
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Paleolithic vs. Epipaleolithic
fisheries in northern Iberia,
di P. Turrero, A. Ardura,
E. García-Vázquez, "Quaternary Research", Volume 82,
Issue 1, July 2014, Pages 51–55
A comparison of
Paleolithic and Epipaleolithic fisheries in NW Iberia
shows an overall high trophic level of catch. Freshwater
fisheries (and thus their impacts) are ca. 8000 yr older
than marine fisheries and have suffered virtually no
changes in the region except for the increase in numbers,
being focused on two families (Salmonidae, and
Anguillidae to a very minor extent). Marine fisheries in
the Paleolithic likely had a low impact but rapidly
increased in importance, raising the average trophic
level of the catch, the number of affected taxa and the
proportion of marine to freshwater fisheries with time. |
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Taxonomic differences in deciduous upper second molar
crown outlines of Homo sapiens, Homo neanderthalensis
and Homo erectus,
di S. E. Bailey et alii,
"Journal of Human Evolution", Volume 72, July 2014,
Pages 1–9
A
significant number of Middle to Late Pleistocene sites
contain primarily (and sometimes only) deciduous teeth
(e.g., Grotta del Cavallo, Mezmaiskaya, Blombos). Not
surprisingly, there has been a recent renewed interest
in deciduous dental variation, especially in the context
of distinguishing Homo neanderthalensis and Homo
sapiens. Most studies of the deciduous dentition of
fossil hominins have focused on standard metrical
variation but morphological (non-metric and morphometric)
variation also promises to shed light on long standing
taxonomic questions. This study examines the taxonomic
significance of the crown outline of the deciduous upper
second molar through principal components analysis and
linear discriminant analysis. We examine whether or not
the crown shape of the upper deciduous second molar
separates H. neanderthalensis from H. sapiens and
explore whether it can be used to correctly assign
individuals to taxa. It builds on previous studies by
focusing on crown rather than cervical outline and by
including a large sample of geographically diverse
recent human populations. Our samples include 17 H.
neanderthalensis, five early H. sapiens, and 12 Upper
Paleolithic H. sapiens. In addition, we include two Homo
erectus specimens in order to evaluate the polarity of
crown shape differences observed between H.
neanderthalensis and H. sapiens. Our results show that
crown outline shape discriminates H. sapiens and H.
neanderthalensis quite well, but does not do well at
distinguishing H. erectus from H. sapiens. We conclude
that the crown outline shape observed in H. sapiens is a
primitive retention and that the skewed shape observed
in H. neanderthalensis is a derived condition. Finally,
we explore the phylogenetic implications of the results
for the H. erectus molars. |
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Old
stones' song: Use-wear experiments and analysis of the
Oldowan quartz and quartzite assemblage from Kanjera
South (Kenya),
di C. Lemorini et alii,
"Journal of Human Evolution", Volume 72, July 2014,
Pages 10–25
Evidence of Oldowan tools by ~2.6 million years ago (Ma)
may signal a major adaptive shift in hominin evolution.
While tool-dependent butchery of large mammals was
important by at least 2.0 Ma, the use of artifacts for
tasks other than faunal processing has been difficult to
diagnose. Here we report on use-wear analysis of ~2.0 Ma
quartz and quartzite artifacts from Kanjera South,
Kenya. A use-wear framework that links processing of
specific materials and tool motions to their resultant
use-wear patterns was developed. A blind test was then
carried out to assess and improve the efficacy of this
experimental use-wear framework, which was then applied
to the analysis of 62 Oldowan artifacts from Kanjera
South. Use-wear on a total of 23 artifact edges was
attributed to the processing of specific materials.
Use-wear on seven edges (30%) was attributed to animal
tissue processing, corroborating zooarchaeological
evidence for butchery at the site. Use-wear on 16 edges
(70%) was attributed to the processing of plant tissues,
including wood, grit-covered plant tissues that we
interpret as underground storage organs (USOs), and
stems of grass or sedges. These results expand our
knowledge of the suite of behaviours carried out in the
vicinity of Kanjera South to include the processing of
materials that would be ‘invisible’ using standard
archaeological methods. Wood cutting and scraping may
represent the production and/or maintenance of wooden
tools. Use-wear related to USO processing extends the
archaeological evidence for hominin acquisition and
consumption of this resource by over 1.5 Ma. Cutting of
grasses, sedges or reeds may be related to a subsistence
task (e.g., grass seed harvesting, cutting out papyrus
culm for consumption) and/or a non-subsistence related
task (e.g., production of ‘twine,’ simple carrying
devices, or bedding). These results highlight the
adaptive significance of lithic technology for hominins
at Kanjera. |
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Coalescence and fragmentation in the late Pleistocene
archaeology of southernmost Africa,
di A. Mackay, B. A.
Stewart, B. M. Chase, "Journal of Human Evolution",
Volume 72, July 2014, Pages 26–51
The
later Pleistocene archaeological record of southernmost
Africa encompasses several Middle Stone Age industries
and the transition to the Later Stone Age. Through this
period various signs of complex human behaviour appear
episodically, including elaborate lithic technologies,
osseous technologies, ornaments, motifs and abstract
designs. Here we explore the regional archaeological
record using different components of lithic
technological systems to track the transmission of
cultural information and the extent of population
interaction within and between different climatic
regions. The data suggest a complex set of coalescent
and fragmented relationships between populations in
different climate regions through the late Pleistocene,
with maximum interaction (coalescence) during MIS 4 and
MIS 2, and fragmentation during MIS 5 and MIS 3.
Coalescent phases correlate with increases in the
frequency of ornaments and other forms of symbolic
expression, leading us to suggest that population
interaction was a significant driver in their appearance. |
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Biomechanical strategies for accuracy and force
generation during stone tool production,
di E. M. Williams, A. D.
Gordon, B. G. Richmond, "Journal of Human Evolution",
Volume 72, July 2014, Pages 52–63
Multiple hominin species used and produced stone tools,
and the archaeological record provides evidence that
stone tool behaviors intensified among later members of
the genus Homo. This intensification is widely thought
to be the product of cognitive and anatomical
adaptations that enabled later Homo taxa to produce
stone tools more efficiently relative to earlier hominin
species. This study builds upon recent investigations of
the knapping motions of modern humans to test whether
aspects of our upper limb anatomy contribute to accuracy
and/or efficiency. Knapping kinematics were captured
from eight experienced knappers using a Vicon motion
capture system. Each subject produced a series of
Oldowan bifacial choppers under two conditions: with
normal wrist mobility and while wearing a brace that
reduced wrist extension (∼30°–35°), simulating one
aspect of the likely primitive hominin condition. Under
normal conditions, subjects employed a variant of the
proximal-to-distal joint sequence common to throwing
activities: subjects initiated down-swing upper limb
motion at the shoulder and proceeded distally,
increasing peak linear and angular velocities from the
shoulder to the elbow to the wrist. At the wrist,
subjects utilized the ‘dart-thrower's arc,’ the most
stable plane of radiocarpal motion, during which wrist
extension is coupled with radial deviation and flexion
with ulnar deviation. With an unrestrained wrist,
subjects achieved significantly greater target accuracy,
wrist angular velocities, and hand linear velocities
compared with the braced condition. Additionally, the
modern wrist's ability to reach high degrees of
extension (≥28.5°) following strike may decrease risk of
carpal and ligamentous damage caused by hyperextension.
These results suggest that wrist extension in humans
contributes significantly to stone tool-making
performance. |
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Neandertals ate their veggies, their feces reveal, di A. Gibbons, "Science NOW", 25
June 2014
Scientists excavating
an archaeological site in southern Spain have finally
gotten the real poop on Neandertals, finding that the
Caveman Diet for these quintessential carnivores
included substantial helpings of vegetables. Using the
oldest published samples of human fecal matter,
archaeologists have found the first direct evidence that
Neandertals in Europe cooked and ate plants about 50,000
years ago. The extinct Neandertals, who lived from about
230,000 to 30,000 years ago, have long been portrayed as
uber-carnivores—humans at the top of the food chain who
ate mostly meat to fuel their revved-up metabolisms in
order to survive in the frigid climes of northern Europe
and Asia. This image was based on evidence from
butchered meat bones and hunting tools at archaeological
sites, as well as from studies of carbon, nitrogen, and
other chemicals in the fossilized teeth of Neandertals,
which can reveal their diets. But a recent study of
starches in the plaque of Neandertal teeth indicated
that Neandertals in modern-day Iraq and Belgium ate
grasses, tubers, and other plants, and that they also
cooked barley grains in Iraq. This view of Neandertals
gathering plants and cooking barley porridge challenged
the old view that our burly cousins went extinct because
they depended too much on meat, whereas versatile modern
humans could survive on a broader range of plant and
animal foods. But it was still unclear whether
vegetables made up a significant part of the European
Neandertal diet. (...) |
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The Neanderthal Meal: A New Perspective Using Faecal
Biomarkers, di A. Sistiaga,
C. Mallol, B. Galván, R. Everett Summons, "PlosONE",
June 25, 2014, DOI: 10.1371/journal.pone.0101045
- free access -
Neanderthal dietary reconstructions have, to date, been
based on indirect evidence and may underestimate the
significance of plants as a food source. While
zooarchaeological and stable isotope data have conveyed
an image of Neanderthals as largely carnivorous, studies
on dental calculus and scattered palaeobotanical
evidence suggest some degree of contribution of plants
to their diet. However, both views remain plausible and
there is no categorical indication of an omnivorous diet.
Here we present direct evidence of Neanderthal diet
using faecal biomarkers, a valuable analytical tool for
identifying dietary provenance. Our gas
chromatography-mass spectrometry results from El Salt (Spain),
a Middle Palaeolithic site dating to ca. 50,000 yr. BP,
represents the oldest positive identification of human
faecal matter. We show that Neanderthals, like
anatomically modern humans, have a high rate of
conversion of cholesterol to coprostanol related to the
presence of required bacteria in their guts. Analysis of
five sediment samples from different occupation floors
suggests that Neanderthals predominantly consumed meat,
as indicated by high coprostanol proportions, but also
had significant plant intake, as shown by the presence
of 5β-stigmastanol. This study highlights the
applicability of the biomarker approach in Pleistocene
contexts as a provider of direct palaeodietary
information and supports the opportunity for further
research into cholesterol metabolism throughout human
evolution. (...) |
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Neandertal roots: Cranial and chronological evidence
from Sima de los Huesos,
di
J. L. Arsuaga et alii, "Science" 20 June 2014:
Vol. 344 no. 6190 pp. 1358-1363
Seventeen Middle
Pleistocene crania from the Sima de los Huesos site (Atapuerca,
Spain) are analyzed, including seven new specimens. This
sample makes it possible to thoroughly characterize a
Middle Pleistocene hominin paleodeme and to address
hypotheses about the origin and evolution of the
Neandertals. Using a variety of techniques, the
hominin-bearing layer could be reassigned to a period
around 430,000 years ago. The sample shows a consistent
morphological pattern with derived Neandertal features
present in the face and anterior vault, many of which
are related to the masticatory apparatus. This suggests
that facial modification was the first step in the
evolution of the Neandertal lineage, pointing to a
mosaic pattern of evolution, with different anatomical
and functional modules evolving at different rates. |
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Il complesso mosaico dei
primi europei,
"Le Scienze" 20 giugno 2014
L'analisi comparativa di 17 crani risalenti al medio
Pleisticene rinvenuti nel sito di Sima de los Huesos,
nella Sierra di Atapuerca, in Spagna, rivelano che il
quadro delle prime popolazioni europee era molto
complesso. Queste popolazioni si sarebbero infatti
evolute secondo un modello “ramificato” (cladogenesi),
in cui da una popolazione iniziale più primitiva
avrebbero avuto origine vari gruppi che si sono poi
evoluti indipendentemente. “Ciò che rende unico il sito
di Sima de los Huesos è l'accumulo straordinario e senza
precedenti di fossili di ominidi; niente di paragonabile
è mai stato scoperto per qualsiasi specie estinta di
ominidi”, ha detto Juan-Luis Arsuaga dell'Universidad
Complutense di Madrid, primo autore dell'articolo
pubblicato su “Science” in cui è illustrata la ricerca.
Dal 1984, da questo sito sono stati infatti estratti
quasi 7000 fossili umani corrispondenti a tutte le parti
dello scheletro di almeno 28 individui. La straordinaria
collezione comprende 17 crani, molti quasi completi, sei
dei quali sono stati descritti per la prima volta nel
corso di questo studio. Questi crani eccezionalmente
conservati – che appartengono tutti a un'unica Clicca e
scopri il significato del termine: popolazione, vissuta
circa 430.000 anni fa - mostrano alcune caratteristiche
tipiche dei Neanderthal , mentre altre sono associate a
ominidi più primitivi. "Il Medio Pleistocene fu un
periodo lungo circa mezzo milione di anni durante il
quale l'evoluzione degli ominidi non seguì un lento
processo di cambiamento, con un solo tipo di ominide che
si è evoluto tranquillamente verso il Neanderthal
classico", ha detto Arsuaga. Il processo che ha portato
ai Neanderthal classici – che avrebbero dominato
l'Europa fino all'arrivo dell'uomo anatomicamente
moderno – sarebbe stato cioè “a mosaico”, con
modificazioni delle varie strutture anatomiche (come
l'apparato mandibolare e la teca cranica) in momenti
successivi ben distinti e in misura diversa a seconda
dei gruppi. E' questo il quadro che emerge dal confronto
fra i reperti di Sima de los Huesos e quelli rinvenuti
in altri siti. In particolare, mentre la teca cranica
sembrerebbe avvicinare gli ominidi di Sima all'Homo
heidelbergensis, specie in cui sono inclusi fossili con
una morfologia più primitiva rispetto ai Neanderthal
della fine medio e tardo Pleistocene, le caratteristiche
decisamente neanderthaliane di tutto l'apparato
masticatorio, portano in un'altra direzione, dato che
nessun fossile di H. heidelbergensis dei diversi siti in
cui sono stati rinvenuti presenta nulla di simile. A
rendere più complesso lo scenario, l'analisi del DNA
mitocondriale recentemente recuperato da uno dei fossili
di Sima, mostra differenze genetiche da quello
neanderthaliano classico, avvicinandolo piuttosto
all'uomo di Denisova, un gruppo arcaico che si è
distinto dal lignaggio dei Neanderthal dopo la
separazione dai gruppi africani e che ha popolato parte
delle regioni euroasiatiche. Secondo gli autori, questi
risultati inducono a pensare che quella di Sima de los
Huesos sia stata una popolazione vissuta in un momento
molto prossimo alla scissione di queste due linee
eurasiatiche. Più in generale, sembrano indicare che i
fossili di Sima non siano necessariamente alcuni dei
“primissimi Neanderthal”: pur essendo sicuramente molto
vicini a essi, potrebbero essere uno degli svariati
gruppi che, isolati e dispersi, si sono diversificati a
partire dagli ominidi più antichi, per rimanere poi
vittime di numerosi “incidenti” demografici
probabilmente legati alle crisi climatiche che hanno
caratterizzato il medio Pleistocene europeo.
·
Neandertal roots: Cranial and chronological evidence
from Sima de los Huesos,
di J. L. Arsuaga et alii, "Science", 20 June
2014: Vol. 344 no. 6190 pp. 1358-1363 |
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Nuovi resti di Homo
rinvenuti in Dancalia Eritrea, "Le Scienze" 20 giugno 2014
Provengono dalla Dancalia
e sono tra i più antichi reperti analizzati con
tecnologie d’indagine estremamente avanzate, come la
microtomografia in luce di sincrotrone e il micro
imaging in risonanza magnetica: sono denti di Homo
erectus/ergaster trovati nei siti di Uadi Aalad e
Mulhuli Amo, nel corso delle campagne di scavo e
ricognizione del Buia International Project, cui la
Sapienza partecipa da oltre dieci anni. Nonostante le
difficoltà climatiche che caratterizzano la regione,
sono circa dieci anni che i ricercatori dell’ateneo e
quelli del Museo Nazionale di Storia Naturale di Parigi,
dell'Università di Firenze e di altre Istituzioni di
ricerca italiane ed internazionali, lavorano in Eritrea
per colmare la lacuna di fossili umani dall'Africa nel
periodo intorno a un milione di anni. La Missione della
Sapienza, coordinata dal paleoantropologo Alfredo Coppa,
ha contribuito alla scoperta di una collezione di
reperti appartenenti ad Homo ergaster, destinati a
riempire di nuove conoscenze proprio questo intervallo
di tempo, di cui gli ultimi tre nelle ultime due
campagne di scavo di dicembre 2013 e marzo 2014. Il team
italiano ha infatti individuato il sito di Mulhuli Amo,
a pochi chilometri da quello in cui fu ritrovato il
cranio di UA 31, che già ha stupito la comunità
scientifica internazionale per le sue peculiari
caratteristiche che hanno gettato nuova luce sulla
storia evolutiva della nostra specie: in questo nuovo
sito, tanto ricco di materiale da essere noto come il
“santuario delle amigdale”, sono stati infatti ritrovati
alcuni dei reperti di Homo, ora pubblicati sull’ultimo
numero della prestigiosa rivista scientifica Journal of
Human Evolution.Clicca e scopri il significato del
termine: Provengono dalla Dancalia e sono tra i più
antichi reperti analizzati con tecnologie d’indagine
estremamente avanzate, come la microtomografia in luce
di sincrotrone e il micro imaging in risonanza
magnetica: sono denti di Homo erectus/ergaster trovati
nei siti di Uadi Aalad e Mulhuli Amo, nel corso delle
campagne di scavo e ricognizione del Buia International
Project, cui la Sapienza partecipa da oltre dieci anni.
Nonostante le difficoltà climatiche che caratterizzano
la regione, sono circa dieci anni che i ricercatori
dell’ateneo e quelli del Museo Nazionale di Storia
Naturale di Parigi, dell'Università di Firenze e di
altre Istituzioni di ricerca italiane ed internazionali,
lavorano in Eritrea per colmare la lacuna di fossili
umani dall'Africa nel periodo intorno a un milione di
anni. La Missione della Sapienza, coordinata dal
paleoantropologo Alfredo Coppa, ha contribuito alla
scoperta di una collezione di reperti appartenenti ad
Homo ergaster, destinati a riempire di nuove conoscenze
proprio questo intervallo di tempo, di cui gli ultimi
tre nelle ultime due campagne di scavo di dicembre 2013
e marzo 2014. Il team italiano ha infatti individuato il
sito di Mulhuli Amo, a pochi chilometri da quello in cui
fu ritrovato il cranio di UA 31, che già ha stupito la
comunità scientifica internazionale per le sue peculiari
caratteristiche che hanno gettato nuova luce sulla
storia evolutiva della nostra specie: in questo nuovo
sito, tanto ricco di materiale da essere noto come il
“santuario delle amigdale”, sono stati infatti ritrovati
alcuni dei reperti di Homo, ora pubblicati sull’ultimo
numero della prestigiosa rivista scientifica Journal of
Human Evolution. Il contributo scientifico si è
incentrato su tre reperti: due incisivi trovati a Uadi
Aalad e un molare da Mulhuli-Amo. Lo studio comparato
della loro struttura ha rivelato un mosaico di
caratteristiche primitive, simili a quelle degli
esemplari più antichi dell’Africa orientale (ad esempio,
uno smalto di medio spessore, come quella che si trova
in Neanderthal), ma anche caratteristiche peculiari, sia
a livello della dentina che della cavità pulpare.
L'analisi attraverso la risonanza magnetica di uno degli
incisivi ha eccezionalmente permesso di visualizzare i
micro marcatori periodici dello sviluppo della dentina
(linee di Andresen): è stato così possibile stimare il
tasso di formazione delle radici di Homo a un milione di
anni che sembra coerente con quello della umanità
moderna. Questa scoperta dimostra che un modello di
accrescimento dentale simile a quello dell’umanità di
tipo moderno si era già prodotto intorno ad un milione
di anni fa quando il sapiens non era ancora presente.
L’analisi delle caratteristiche strutturali e di
sviluppo dei tre denti è stata condotta attraverso
immagini ad alta risoluzione, presso il Laboratorio di
risonanza magnetica nucleare del dipartimento di Fisica
della Sapienza, e presso il Sincrotrone Elettra ed il
Laboratorio multidisciplinare del Centro internazionale
di Fisica teorica (ICTP) di Trieste. Questi importanti
risultati aprono nuove prospettive nello studio
dell'evoluzione umana nel Pleistocene inferiore: se i
fossili africani ad oggi disponibili per questo periodo
sono ancora molto rari, la prossima campagna di scavi
paleoantropologici nella Dancalia Eritrea, prevista per
la fine del 2014, potrebbe fornire ulteriori prove sulle
relazioni evolutive tra Homo ergaster e Homo
heidelbergensis, l'antenato della moderna umanità. Le
ricerche, coordinate da Alfredo Coppa del dipartimento
di Scienze ambientali della Sapienza, e condotto da
ricercatori delle Università di Barcellona, Bologna,
Cambridge, Cosenza, Ferrara, Firenze, Kansas, Padova,
Poitiers, Tarragona, Torino, York e del Museo Nazionale
Preistorico Etnografico Luigi Pigorini di Roma, del
Northern Red Sea Regional Museum di Massawa, del
National Museum of Eritrea di Asmara, del Museo
Nazionale di Storia Naturale di Parigi, del
Multidisciplinary Laboratory, The 'Abdus Salam'
International Centre for Theoretical Physics di Trieste,
del Sincrotrone Elettra di Trieste, sono state rese
possibile grazie al supporto del Governo Eritreo e
grazie ai finanziamenti del progetto PRIN del Ministero
della ricerca scientifica, di quelli per le missioni
archeologiche del Ministero per gli Affari Esteri, dei
progetti Grandi Scavi e Awards dell'Università Sapienza
di Roma, oltre alla sponsorizzazione del Gruppo Piccini
di Perugia. |
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Fossils put a new face on the
ancestors of Neandertals,
di A. Gibbons, "Science
NOW", 19 June 2014
Neandertals came into the world face first. Or at least,
their lineage did, according to Spanish
paleoanthropologists who analyzed 17 ancient skulls from
a deep bone pit in the Atapuerca Mountains of northern
Spain. The facial bones and teeth of these people, who
lived 430,000 years ago, already resemble those of
Neandertals, which are known from much younger fossils.
Yet the Sima people also still had relatively small
brains and other primitive features, suggesting they
were very early members of the lineage that eventually
gave rise to Neandertals. The analysis offers a detailed
look at the murky origins of our closest cousins and has
implications for the evolution of key traits such as
brain size. Researchers have long debated when and where
Neandertals arose. Neandertals stem from the same root
as our own ancestors, but the two lineages parted ways
sometime in the past 500,000 years or so. Modern humans
arose in Africa at least 200,000 years ago, whereas the
fossils of Neandertals are found only in Europe and Asia
after 230,000 years ago. Between about 200,000 and a
million years ago, our view of human origins is blurred—most
of the fossils of hominins, or members of the human
family, are isolated, fragmentary, or spread widely
across Europe, Asia, and Africa. (...) |
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Facing a violent
past: Evolution of human ancestors' faces a result of
need to weather punches during arguments, study suggests, June 9, 2014
An alternative to the
previous long-held hypothesis that the evolution of the
robust faces of our early ancestors resulted largely
from the need to chew hard-to-crush foods such as nuts
has been presented by researchers. The prehistoric
version of a bar fight -- over women, resources and
other slug-worthy disagreements -- are what shaped our
facial evolution, new research suggests. (...) |
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Maritime route of
colonization of Europe,
di
P. Paschou et alii,
"Proceedings of the National Academy of Sciences - Early Edition", June 9, 2014, doi: 10.1073/pnas.1320811111
- free access -
The Neolithic
populations, which colonized Europe approximately 9,000
y ago, presumably migrated from Near East to Anatolia
and from there to Central Europe through Thrace and the
Balkans. An alternative route would have been island
hopping across the Southern European coast. To test this
hypothesis, we analyzed genome-wide DNA polymorphisms on
populations bordering the Mediterranean coast and from
Anatolia and mainland Europe. We observe a striking
structure correlating genes with geography around the
Mediterranean Sea with characteristic east to west
clines of gene flow. Using population network analysis,
we also find that the gene flow from Anatolia to Europe
was through Dodecanese, Crete, and the Southern European
coast, compatible with the hypothesis that a maritime
coastal route was mainly used for the migration of
Neolithic farmers to Europe. (...) |
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Traces of early use
of fire found in Spain,
3
June 2014
Early humans who lived
in the Cueva Negra (Black Cave) of southeastern Spain
about 800,000 years ago used fire, resources, and tools
in their environment, according to a report co-authored
by Michael Walker and his colleagues at Murcia
University. In the face of a cliff overlooking the
Quipar river, the rock-shelter was initially explored by
archaeologists in 1981, but systematic excavations didn't
begin until 1990 when a team led by Walker undertook
detailed investigations which continued for 25 seasons.
They uncovered 5 metres of sediment containing late
Pleistocene finds, including early human teeth, a rich
artefact assemblage, and remains of ancient flora and
fauna indicating warm, moist environmental conditions.
(...) |
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Abri
Cro-Magnon - Espace muséographique - Visite
Après des dizaines d’années laissé à l’abandon, le
fameux abri Cro-Magnon revit enfin ! Nettoyé, débarrassé
des constructions qui le délimitaient, l’abri sous-roche
de Cro-Magnon, aux Eyzies-de-Tayac, est mis en valeur
dans un ensemble muséographique qui permet de comprendre
simplement qui était Cro-Magnon, et comment il vivait.
Un abri mis en valeur et qui retrouve, en partie, son
aspect originel, avant les constructions du début du
XXème siècle. En effet, après la découverte du site
(1868) et les fouilles qui ont suivi, le site a
progressivement été abandonné, grignoté par les maisons
du village. Jusqu’en 2014 l’abri sous roche n’était plus
qu’un tout petit surplomb rocheux, uniquement signalé
par une plaque. (...) |
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Termites in the hominin diet: A meta-analysis of termite
genera, species and castes as a dietary supplement for
South African robust australopithecines,
di J. J. Lesnik, "Journal
of Human Evolution", Volume 71, June 2014, Pages 94–104
Termite
foraging by chimpanzees and present-day modern humans is
a well-documented phenomenon, making it a plausible
hypothesis that early hominins were also utilizing this
resource. Hominin termite foraging has been credited by
some to be the explanation for the unexpected carbon
isotope signatures present in South African hominin
teeth, which suggest the diet was different from that of
extant non-human great apes, consisting of a significant
amount of resources that are not from woody-plants.
Grass-eating termites are one potential resource that
could contribute to the carbon signature. However, not
all termites eat grasses, and in fact, the termites that
are most widely consumed by chimpanzees and by many
present-day human populations at best have a mixed diet
that includes small amounts of grasses. Here I review
the ecology of termites and how it affects their
desirability as a food resource for hominins, and
conduct a meta-analysis of nutritional values for
various genera, species and castes from the literature.
Termites are very diverse, even within species, and this
variability affects both their carbon signatures and
nutritional value, hindering generalizations regarding
the contribution of termites to the hominin diet. It is
concluded here that a combination of soldiers and alates
of the genus Macrotermes be used to model the
insectivory component of the Plio-Pleistocene hominin
diet due to their significant amounts of energy-yielding
nutrients and potential role as a critical resource for
supporting larger-brained hominins. |
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Paléolithique supérieur,
"L'Anthropologie", Volume
118, Issue 3, Pages 211-390 (June–August 2014)
- Être ou ne pas être aurignaciens
?… Telle est la question pour les Mégacéros de la grotte
Chauvet, di
M. Martin
- Předmostí III : un site
pavlovien de la Porte de Moravie (République tchèque,
Europe centrale),
di M. Polanská, J. Svoboda,
B. Hromadová, S. Sázelová
- Entre esthétique et symbolisme.
L’objet gravettien en stéatite de la Grotte Florestan
(Grimaldi, Vintimille, Italie),
di G. Malerba, G.
Giacobini, G. Onoratini, A. Arellano, P. E. Moullé
- Les objets en ivoire des
sépultures gravettiennes de la Barma Grande de Grimaldi
(Ligurie, Italie). Étude descriptive et technologique,
di G. Malerba, G.
Giacobini
- Un exemple de gestion des
géo-ressources au Paléolithique supérieur en moyenne
montagne : le Badegoulien de la grotte du Rond-du-Barry
(Sinzelles, Polignac, Haute-Loire),
di V. Delvigne, A. Lafarge,
P. Fernandes, M. Piboule, J. P. Raynal
-
Premières découvertes sur les
techniques de fabrication de cordages à partir de rouets
(Bâtons-percés). Évidences sur le mobilier et l’art
pariétal du Paléolithique supérieur (Magdalénien),
di C. Kilgore, E.
Gonthier
- Prehistoria de la costa
extremo-sur del Perú. Los pescadores arcaicos de la
Quebrada de los Burros (10 000–7000 a.P.), D. Lavallée,
M. Julien (Eds.). UMIFRE 17, Fondo Éditorial de la
Pontificia Universidad Católica del Perú et Instituto
Francés de Estudios Andinos, CNRS-MAE, Lima (2012)
- Antoine Lourdeau,
Peuplements et préhistoire en Amériques, D. Vialou
(Ed.). Éditions du Comité des travaux historiques et
scientifiques, coll. Documents Préhistoriques, no 28
(2011) |
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Their lips are sealed: identifying hard stone, soft stone, and antler hammer direct percussion in Palaeolithic prismatic blade production,
di K. Driscoll, M. García-Rojas, "Journal of Archaeological Science", Volume 47, July 2014, Pages 134–141
The present experiment examined the differentiation between hard stone, soft stone, and antler hammer in Upper Palaeolithic direct percussion, prismatic blade production through the experimental knapping by two knappers who were asked to produce a series of medium-sized blades. The use of two knappers in the experiment tested knapper variability in the resultant experimental assemblage. While the majority of the attributes of blades and proximal fragments – including the presence of lipping, platform preparation, bulb presence and prominence, and curvature amongst others – did not vary significantly in regards to which hammer type either knapper used, a number of blade attributes differed, significantly yet weakly, and there was almost no direct correlation between the individual knappers blades and the hammer type they used. This suggests strongly that for a given goal of producing medium-sized blades, this can be accomplished equally well using antler, hard stone, or soft stone hammers, and the resultant blades will be difficult to tell apart. Therefore, based on the results of this series of knapping experiments, we would be hesitant in using the 21 variables tested here to differentiate between blades produced with antler, hard stone, and soft stone hammer types in the archaeological record. |
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Using Pyrotechnology: Fire-related Features and Activities with a Focus on the African Middle Stone
Age, di S. Evjenth Bentsen, "Journal of Archaeological
Research", June 2014, Volume 22, Issue 2, pp 141-175
Pyrotechnology was important in prehistory and has been a research topic for decades, in particular, the origins of controlled and habitual use of fire. The earliest putative evidence of fire use is from the African sites of Swartkrans (1,500,000–1,000,000 years ago) and Koobi Fora (1,500,000 years ago). In contrast, researchers working with European sites debate whether habitual use of fire occurred before 400,000 years ago. This paper provides a brief introduction to early fire use and then focuses on the African Middle Stone Age. Published evidence on fire use is available for 34 sites in southern Africa. Combustion features yield much evidence about human behavior, not only in regard to technical skills but also concerning social activities. Several activities using fire, symbolic behavior, spatial structuring, and group size in the Middle Stone Age are inferred from bone and lithic data, ash discard, site maintenance, and hearth size. The current status of knowledge on Middle Stone Age pyrotechnology demonstrates the benefits of applying new methodological approaches, facilitates comparisons with earlier and later archaeological periods, and is an important reminder of the benefits of a multidisciplinary approach. |
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Climate and environments during Marine Isotope Stage 11 in the central Iberian Peninsula: the herpetofaunal assemblage from the Acheulean site of Áridos-1,
Madrid,
di H. A. Blain et alii, "Quaternary Science Reviews", Volume 94, 15 June 2014, Pages 7–21
The interglacial episodes of the Quaternary Period are currently the focus of a great deal of attention within the scientific community, primarily because they can help us to understand how the climate of the current interglacial may have evolved without human intervention and to assess the impact of these climate changes on ecological systems. In the central Iberian Peninsula, the archaeological site of Áridos-1 (Arganda, Madrid), with numeric dates of 379.7 ± 45 ka obtained by AAR for the upper part of the sedimentological unit of Arganda I, in combination with the evolved state of the small mammals, has been chronologically attributed to Marine Isotope Stage (MIS) 11. Given the diversified faunal assemblages delivered by the 1976
excavations, Áridos-1 is probably one of the best terrestrial candidates for an understanding of the climatic and environmental conditions that prevailed in central Spain during the MIS 11 interglacial. In consequence, the fossil amphibians and squamate reptiles stored in the collections of the Museo Arqueológico Nacional of Madrid have been newly described and quantified in order to apply the mutual climatic range and habitat weighting methods for estimating quantitative data. The Mediterranean climate is shown to have been warmer and wetter than today in central Spain during MIS 11, with the mean annual temperature 1.7 °C higher and mean annual precipitation 223.9 mm higher than at present. The monthly climatic reconstruction shows differences in the distribution of precipitation over the course of the year, with more abundant precipitation during the winter months, at the beginning of spring and at the end of fall (from October to March) and less precipitation than today during the summer months and at the end of spring (from May to August), suggesting stronger rainfall seasonality between winter and summer than currently occurs. Such climate reconstruction is consistent with other European MIS 11 paleoclimatic records. The paleoenvironmental reconstruction based on the herpetofaunal assemblage suggests a patchy landscape with a large representation of dry meadows, scrubland and rocky habitats together with well-evidenced aquatic habitats. Such open environments during a warm and humid forestal period are seen to be connected with the location of the site in a large river valley, where open vegetation would have been partly initiated and certainly maintained by the grazing, browsing, trampling and tree-felling activities of large mammals. |
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The role of carnivores and their relationship to hominin settlements in the TD6-2 level from Gran Dolina (Sierra de Atapuerca,
Spain), di Palmira Saladié
et alii, "Quaternary Science Reviews", Volume 93, 1 June 2014, Pages 47–66
Pleistocene level TD6-2 of the Gran Dolina site (Sierra de Atapuerca, Spain) is the result of anthropogenic accumulation. Hominin groups occupied the cave as a home base, where they brought in, butchered and consumed the carcasses of ungulates and other hominins. In this paper, we reassess the role of carnivores in the formation and/or modification of the assemblage. We employed different methods to explore the scenario in which the TD6-2 assemblage was formed: (1) identifying the actor responsible for tooth marks; (2) determining the frequency of carnivore tooth marks and their distribution; (3) identifying the co-occurrence of modifications (butchering marks and carnivore tooth marks); (4) calculating the percentage of change and the epiphysis to shaft ratio. Carnivore tooth marks are scarce, as is the co-occurrence of hominin and carnivore modifications. However, not all tooth marks have been attributed to a particular agent due to the high equifinality between human and carnivore tooth marks. For these reasons, the frequency of tooth marks and the co-occurrence of modifications have been of little help in interpreting the role of
carnivores. Axial skeletal remains and the epiphyses of the long bones are in large part missing. The percentage of change and the epiphysis to shaft ratio suggest moderate carnivore ravaging activity. Our data indicate that the role of carnivores in TD6-2 seems to have had an impact on the original assemblage after hominins had extracted a large amount of nutrients from the carcasses. Cannibalized hominin remains showed no carnivore tooth marks and have a greater presence of low survival bones compared to ungulate remains. These findings point to a different taphonomic history suggesting that TD6-2 represents a succession of settlements having different characteristics. |
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Reconstructing the DNA Methylation Maps of the Neandertal and the
Denisovan, D. Gokhman et
alii, "Science", 2 May 2014, Vol. 344, no. 6183, pp. 523-527
Ancient DNA sequencing has recently provided high-coverage archaic human genomes. However, the evolution of epigenetic regulation along the human lineage remains largely unexplored. We reconstructed the full DNA methylation maps of the Neandertal and the Denisovan by harnessing the natural degradation processes of methylated and unmethylated cytosines. Comparing these ancient methylation maps to those of present-day humans, we identified ~2000 differentially methylated regions (DMRs). Particularly, we found substantial methylation changes in the HOXD cluster that may explain anatomical differences between archaic and present-day humans. Additionally, we found that DMRs are significantly more likely to be associated with diseases. This study provides insight into the epigenetic landscape of our closest evolutionary relatives and opens a window to explore the epigenomes of extinct species. |
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The Cradle of Thought: Growth, Learning, Play and Attachment in Neanderthal
Children, di P. Spikins, G. Hitchens, A. Needham, H. Rutherford, "Oxford Journal of
Archaeology", Volume 33, Issue 2, pages 111–134, May 2014
Childhood is a core stage in development, essential in the acquisition of social, practical and cultural skills. However, this area receives limited attention in archaeological debate, especially in early prehistory. We here consider Neanderthal childhood, exploring the experience of Neanderthal children using biological, cultural and social evidence. We conclude that Neanderthal childhood experience was subtly different from that of their modern human counterparts, orientated around a greater focus on social relationships within their group. Neanderthal children, as reflected in the burial record, may have played a particularly significant role in their society, especially in the domain of symbolic expression. A consideration of childhood informs broader debates surrounding the subtle differences between Neanderthals and modern humans. |
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Landscape distribution and ecology of Plio-Pleistocene avifaunal communities from Lowermost Bed
II, Olduvai Gorge, Tanzania,
di K. A. Prassack, "Journal of Human
Evolution", Volume 70, Pages 1-72 (May 2014)
Plio-Pleistocene avifaunal communities are used to reconstruct Lowermost Bed II landscapes at the early hominin site of Olduvai Gorge, Tanzania. These deposits are laterally extensive, have strong chronostratigraphic control, and were excavated using a landscape archaeological approach. Such factors allow for horizontal spatial-correlation of avian communities across the paleolandscape over a geologically short time frame (approximately 65,000 years). Lowermost Bed II avifaunal communities point to an extensive freshwater wetland system across the extent of paleo-Lake Olduvai's eastern margin.
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Stratigraphic analysis of the Sterkfontein StW 573 Australopithecus skeleton and implications for its
age, di L. Bruxelles, R. J. Clarke, R. Maire, R. Ortega, D. Stratford, "Journal of Human
Evolution", Volume 70, May 2014, Pages 36–48
StW 573, Little Foot, is the most complete Australopithecus skeleton yet discovered, with many of its bones found in their correct anatomical position. Since the discovery of the in situ skeleton in the Silberberg Grotto in 1997, several teams have attempted to date the fossil. This appeared a simple process because several flowstones are inter-bedded in the breccia above and below StW 573. Dating of these flowstones, using U–Pb (uranium-lead) isotope decay techniques, gave younger results than expected from the fauna and stratigraphic position, around 2.2 Ma (millions of years). Our recent stratigraphic, micromorphological and geochemical studies revealed that the stratigraphy is much more complicated than was previously thought, with localized post-depositional processes leading to the creation of voids within the breccia around the skeleton. These voids were then filled by multiple generations of flowstone growth. The research we present here demonstrates that the proposed dates based on the flowstone deposition can give only a minimum age for StW 573 and that the flowstone formation came after, and probably long after, the breccia deposition. If one takes account of the long evolution of these karst fillings, StW 573 appears to be significantly older than 2.2 Ma. |
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Experimental heat treatment of silcrete implies analogical reasoning in the Middle Stone
Age, di L. Wadley, L. C. Prinsloo, "Journal of Human Evolution", Volume 70, May 2014, Pages 49–60
Siliceous rocks that were not heated to high temperatures during their geological formation display improved knapping qualities when they are subjected to controlled heating. Experimental heat treatment of South African silcrete, using open fires of the kind used during the Middle Stone Age, shows that the process needed careful management, notwithstanding recent arguments to the contrary. Silcrete blocks fractured when heated on the surface of open fires or on coal beds, but were heated without mishap when buried in sand below a fire. Three silcrete samples, a control, a block heated underground with maximum temperature between 400 and 500 °C and a block heated in an open fire with maximum temperature between 700 and 800 °C, were analysed with X-ray powder diffraction (XRD), X-ray fluorescence (XRF), optical microscopy, and both Fourier transform infrared (FTIR) and Raman spectroscopy. The results show that the volume expansion during the thermally induced α- to β-quartz phase transformation and the volume contraction during cooling play a major role in the heat treatment of silcrete. Rapid heating or cooling through the phase transformation at 573 °C will cause fracture of the silcrete. Successful heat treatment requires controlling surface fire temperatures in order to obtain the appropriate underground temperatures to stay below the quartz inversion temperature. Heat treatment of rocks is a transformative technology that requires skilled use of fire. This process involves analogical reasoning, which is an attribute of complex
cognition. |
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Middle Paleolithic and Uluzzian human remains from Fumane Cave,
Italy, di S. Benazzi et
alii, "Journal of Human Evolution", Volume 70, May 2014, Pages 61–68
The site of Fumane Cave (western Lessini Mountains, Italy) contains a stratigraphic sequence spanning the Middle to early Upper Paleolithic. During excavations from 1989 to 2011, four human teeth were unearthed from the Mousterian (Fumane 1, 4, 5) and Uluzzian (Fumane 6) levels of the cave. In this contribution, we provide the first morphological description and morphometric analysis of the dental remains. All of the human remains, except for Fumane 6, are deciduous teeth. Based on metric data (crown and cervical outline analysis, and lateral enamel thickness) and non-metric dental traits (e.g., mid-trigonid crest), Fumane 1 (lower left second deciduous molar) clearly belongs to a Neandertal. For Fumane 4 (upper right central deciduous incisor), the taxonomic attribution is difficult due to heavy incisal wear. Some morphological features observed in Fumane 5 (lower right lateral deciduous incisor), coupled with the large size of the tooth, support Neandertal affinity. Fumane 6, a fragment of a permanent molar, does not show any morphological features useful for taxonomic discrimination. The human teeth from Fumane Cave increase the sample of Italian fossil remains, and emphasize the need to develop new methods to extract meaningful taxonomic information from deciduous and worn teeth. |
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Opportunities, problems and future directions in the study of open-air Middle Paleolithic
sites, Edited by Gonen Sharon, Yossi Zaidner and Erella Hovers,
"Quaternary International", Volume 331, Pages 1-278 (8 May 2014)
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Opportunities, problems and future directions in the study of open-air Middle Paleolithic sites,
di G. Sharon, Y. Zaidner, E. Hovers
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Chronological and behavioral contexts of the earliest Middle Stone Age in the Gademotta Formation, Main Ethiopian Rift,
di Y. Sahle, L. E. Morgan, D. R. Braun, B. Atnafu, W. K. Hutchings
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Sites on the landscape: Paleoenvironmental context of late Pleistocene archaeological sites from the Lake Victoria basin, equatorial East Africa,
di C.A. Tryon et alii
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The Eemian Interglacial lake-landscape at Neumark-Nord (Germany) and its potential for our knowledge of hominin subsistence strategies,
di S. Gaudzinski-Windheuser, L. Kindler, E. Pop, W. Roebroeks, G. Smith
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An open-air site from the recent Middle Palaeolithic in the Paris Basin (France):
Les Bossats at Ormesson (Seine-et-Marne), di P. Bodu, H. Salomon, M. Leroyer, H. G. Naton, J. Lacarriere, M. Dessoles
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Paleoenvironmental change and settlement dynamics in the Druze Marsh: Results of recent excavation at an open-air Paleolithic site,
di C. J.H. Ames, A. Nowell, C. E. Cordova, J. T. Pokines, M. S. Bisson,
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Dissecting palimpsests in a Late Lower and Middle Paleolithic flint acquisition site
on the Madaba Plateau, Jordan, di M. S. Bisson, A. Nowell, C. Cordova, M. Poupart, C. Ames
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Middle Paleolithic open-air industrial areas in the Galilee, Israel: The challenging study of flint extraction and reduction complexes,
di A. Gopher, R. Barkai
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Geoarchaeological context of the later phases of Mousterian occupation (80–115 ka) at Nesher Ramla, Israel: Soil erosion,
deposition and pedogenic processes, di A. Tsatskin, Y. Zaidner
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Taphonomy and paleoecological implications of fossorial microvertebrates at the Middle Paleolithic open-air site of Nesher Ramla,
Israel, di L. Weissbrod, Y. Zaidner
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Formation processes and combustion features at the lower layers of the Middle Palaeolithic open-air site
of Nesher Ramla, Israel, di D. E. Friesem, Y. Zaidner, R. Shahack-Gross
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Geological setting and age of the Middle Paleolithic site of Nahal Mahanayeem Outlet
(Upper Jordan Valley, Israel), di J. Kalbe, G. Sharon, N. Porat, C. Zhang, S. Mischke
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Palynological investigations at the Middle Palaeolithic site of Nahal Mahanayeem Outlet, Israel,
di S. Aharonovich, G. Sharon, M. Weinstein-Evron
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The lithic tool arsenal of a Mousterian hunter,
di G. Sharon, M. Oron
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Mousterian intra-site spatial patterning at Quneitra, Golan Heights,
di M. Oron, N. Goren-Inbar
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The stratigraphy and paleogeography of the Middle Paleolithic open-air site
of ‘Ein Qashish, Northern Israel, di N. Greenbaum, R. Ekshtain, A. Malinsky-Buller, N. Porat, E. Hovers
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Islands in a stream? Reconstructing site formation processes in the late Middle Paleolithic site of ‘Ein Qashish, northern Israel,
di E. Hovers, R. Ekshtain, N. Greenbaum, A. Malinsky-Buller, N. Nir, R. Yeshurun
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Organization of lithic technology at ‘Ein Qashish, a late Middle Paleolithic open-air site in Israel,
di A. Malinsky-Buller, R. Ekshtain, E. Hovers
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Raw material exploitation around the Middle Paleolithic site of ‘Ein Qashish,
di R. Ekshtain, A. Malinsky-Buller, S. Ilani, I. Segal, E. Hovers
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Neanderthal settlement patterns during MIS 4–3 in Sierra de Atapuerca (Burgos, Spain),
di M. Navazo, E. Carbonell |
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La grotte Chauvet,
"L'Anthropologie", Volume 118, Issue 2, Pages 115-210 (April–May 2014)
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Nouvelles recherches sur l’identité culturelle et stylistique de la grotte Chauvet et sur sa datation par la méthode du
4C, di J. Combier, G. Jouve
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Au sujet de l’article de J. Combier et G. Jouve et de la datation de la grotte Chauvet,
di M. Lorblanchet
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Chauvet, chronologie et archéologie, di
R. de Balbín Behrmann
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Against Chauvet-nism. A critique of recent attempts to validate an early chronology for the art of Chauvet
Cave, di P. Pettitt, P. Bahn
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Graphisme et thématique de la Grotte
Chauvet, di M.
Martin
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Comments and additional remarks on the paper by Jean Combier and Guy Jouve: New investigations into the cultural and stylistic
identity of the Chauvet Cave and its radiocarbon dating,
di C. Züchner
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Commentaire de l’article de Jean Combier et Guy Jouve : nouvelles recherches sur
l’identité culturelle et stylistique de la grotte Chauvet et sur sa datation par la méthode du 14C,
di F. Djindjian
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De l’utilisation des isotopes stables du carbone dans la datation par la méthode du
radiocarbone, di M. Fontugne et alii |
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Neandertal
Demise: An Archaeological Analysis of the Modern Human Superiority
Complex, di P. Villa, W. Roebroeks, April 30, 2014, DOI: 10.1371/journal.pone.0096424
- free access -
Neandertals are the best-studied of all extinct hominins, with a rich fossil record sampling hundreds of individuals, roughly dating from between 350,000 and 40,000 years ago. Their distinct fossil remains have been retrieved from Portugal in the west to the Altai area in central Asia in the east and from below the waters of the North Sea in the north to a series of caves in Israel in the south. Having thrived in Eurasia for more than 300,000 years, Neandertals vanished from the record around 40,000 years ago, when modern humans entered Europe. Modern humans are usually seen as superior in a wide range of domains, including weaponry and subsistence strategies, which would have led to the demise of Neandertals. This systematic review of the archaeological records of Neandertals and their modern human contemporaries finds no support for such interpretations, as the Neandertal archaeological record is not different enough to explain the demise in terms of inferiority in archaeologically visible domains. Instead, current genetic data suggest that complex processes of interbreeding and assimilation may have been responsible for the disappearance of the specific Neandertal morphology from the fossil record.
(...) |
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Manganese coating of the Tabun faunal assemblage: Implications for modern human behaviour in the Levantine Middle
Palaeolithic, di A. B. Marín-Arroyo, M. D. Landete-Ruiz, R. Seva-Román, M. D.
Lewis, "Quaternary International", Volume 330, 30 April 2014, Pages 10–18
During the taphonomic and archaeozoological reappraisal of Garrod's material from Tabun Cave (Mount Carmel, Israel) a distinctive dark colouring of bones was observed in the Level C and D assemblages. Based on several geochemical tests, the presence of insoluble manganese oxides in those coatings was confirmed. The origin of this mineral, given the geological context, could be attributed to the decomposition of large quantities of organic matter due to an intensive human occupation of the site in MIS 5. This fact reinforces the hypothesis of the existence of a larger logistic mobility around more permanent residential sites among anatomically modern humans in the Levantine Middle Palaeolithic, which constitutes early evidence of a more complex economic behaviour. |
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From small bone fragments to Neanderthal activity areas: The case of Level O of the Abric Romaní
(Capellades, Barcelona, Spain), di
M. J. Gabucio, I. Cáceres, J. Rosell, P. Saladié, J. Vallverdú,
"Quaternary International", Volume 330, 30 April 2014, Pages 36–51
Several recent works have suggested that Neanderthal spatial behaviour may have been more complex than previously thought. One of the archaeological sites that has contributed the most data on this issue is the Abric Romaní
(Capellades, Barcelona, Spain). This paper focuses on the study of Neanderthal activities related to animal resources that took place in Level O of Abric Romaní, dated to around 55 ka. For this study, all of the faunal remains recovered from the level (including fragments smaller than 2 cm) have been analysed, with special attention paid to their distribution over the surface. Our study has two main goals: firstly, to identify activity areas related to Neanderthal activities and, secondly, to evaluate the information that small bone fragments, which are generally ignored, can provide. Among other results, the methods applied during the course of the study have led to the identification of an accumulation of calcined bones, possibly related to the complementary use of bones as fuel and/or the presence of a systematic toss zone within a hearth. In addition, this work stresses the importance of examining the small faunal remains recovered in archaeological sites, particularly when identifying human activity areas or when assessing the intensity of human activities. |
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Genomic and cranial phenotype data support multiple modern human dispersals from Africa and a southern route into Asia,
H. Reyes-Centeno et alii, "Proceedings of the National Academy of Sciences - Early Edition", April 16, 2014,
DOI: 10.1073/pnas.1323666111 - free
access -
Despite broad consensus on Africa as the main place of origin for anatomically modern humans, their dispersal pattern out of the continent continues to be intensely debated. In extant human populations, the observation of decreasing genetic and phenotypic diversity at increasing distances from sub-Saharan Africa has been interpreted as evidence for a single dispersal, accompanied by a series of founder effects. In such a scenario, modern human genetic and phenotypic variation was primarily generated through successive population bottlenecks and drift during a rapid worldwide expansion out of Africa in the Late Pleistocene. However, recent genetic studies, as well as accumulating archaeological and paleoanthropological evidence, challenge this parsimonious model. They suggest instead a “southern route” dispersal into Asia as early as the late Middle Pleistocene, followed by a separate dispersal into northern Eurasia. Here we test these competing out-of-Africa scenarios by modeling hypothetical geographical migration routes and assessing their correlation with neutral population differentiation, as measured by genetic polymorphisms and cranial shape variables of modern human populations from Africa and Asia. We show that both lines of evidence support a multiple-dispersals model in which Australo-Melanesian populations are relatively isolated descendants of an early dispersal, whereas other Asian populations are descended from, or highly admixed with, members of a subsequent migration
event. (...)
·
Partenza anticipata dall'Africa per Homo
sapiens, di V. Monastero,
"National Geographic", 13/5/2014 |
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Patterns of coding variation in the complete exomes of three
Neandertals, di S. Castellano
et alii, "Proceedings of the National Academy of Sciences - Early
Edition", April 16, 2014, DOI: 10.1073/pnas.1405138111 -
free access -
We present the DNA sequence of 17,367 protein-coding genes in two Neandertals from Spain and Croatia and analyze them together with the genome sequence recently determined from a Neandertal from southern Siberia. Comparisons with present-day humans from Africa, Europe, and Asia reveal that genetic diversity among Neandertals was remarkably low, and that they carried a higher proportion of amino acid-changing (nonsynonymous) alleles inferred to alter protein structure or function than present-day humans. Thus, Neandertals across Eurasia had a smaller long-term effective population than present-day humans. We also identify amino acid substitutions in Neandertals and present-day humans that may underlie phenotypic differences between the two groups. We find that genes involved in skeletal morphology have changed more in the lineage leading to Neandertals than in the ancestral lineage common to archaic and modern humans, whereas genes involved in behavior and pigmentation have changed more on the modern human
lineage. (...)
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I Neandertal vivevano in piccoli gruppi
isolati, di D. Vergano,
"National Geographic", 23 aprile 2014 |
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How to build a
Neanderthal, di E. Callaway, "Nature - News", 17 April 2014
The DNA sequences of Neanderthals and other extinct human relatives have exposed lost migrations, sexual escapades and even new species. Now, researchers have uncovered another molecular clue lurking in the bones of long-dead humans: the so-called 'epigenetic' chemical modifications that adorn DNA and orchestrate gene
activity. Epigenomes of two archaic humans — a Neanderthal and a Denisovan, groups that lived in Europe and Asia until around 30,000 years ago — are revealed today in Science1. The report follows on the publication in December of a similar map from another group analysing epigenetic modifications in a 4,000-year-old native of
Greenland. Epigenetic differences between humans and their ancient relatives may explain differences in physical traits, or phenotypes, such as the jutting brow ridge of Neanderthals. Yet various obstacles still hinder the study of ancient epigenomes, and some researchers are not yet sure if the approach will yield
insights. (...) |
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Humans and Neandertals interbred, new method
confirms, April 8, 2014
Technical objections to the idea that Neandertals interbred with the ancestors of Eurasians have been overcome, thanks to a new genome analysis method. The technique can more confidently detect the genetic signatures of interbreeding than previous approaches and will be useful for evolutionary studies of other ancient or rare DNA
samples. (...) |
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Farndon Fields, Nottinghamshire: in situ multi-phased Late Upper
Palaeolithic activity on the floodplain, di M. Grant, P. Harding, "The
Past - Newsletter of The Prehistoric Society", aprile 2014, n. 76
In 2009, a Cotswold Wessex Archaeology joint venture
undertook the archaeological works along the 28km upgrade of the A46 trunk road between Newark-on-Trent and
Widmerpool, Nottinghamshire. Part of this work impacted upon the important Late Upper Palaeolithic
(LUP) site of Farndon Fields which lies just south of Newark near the
confluence of the river Devon with the Trent. (...) |
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"Traces
in time", 4-2014
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Macro and microscopic wear analysis of the non-worked lateral edge of a large
biface, di A. Zupancich,
T. Proffitt
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Glossy tools innovations in the method of interpretations of use-wear produced by plant
processing,
di D. D'Errico |
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Symbolic or Utilitarian? Juggling interpretations of neanderthal behavior: new inferences from the study of
engraved stone surfaces, di M. Peresani
et alii, "Jass - Journal of Anthropological Sciences
Vol. 92 (2014), pp. 233-255 - free
access -
Different categories of finds reveal how Neanderthals have manifested at different moments
behaviors not ascribable to the utilitarian sphere, but to the aesthetic or symbolic. When the majority of
this evidence dates to the few millennia that preceded the spread of Anatomically Modern Humans in
Europe, these are grounds to continue the debate regarding the emergence of complex behavior, seen as an
autonomous phenomenon of Neanderthal man or as the result of contact with immigrant populations.
Re-examination of pebbles or flaked stones, a large part of such evidence, using a rigorous technological
and taphonomic approach integrated with experimental tests, has already revealed these materials to be
insignificant or natural, rather than anthropic, in origin. The following work seeks to shed light on the
uncertainty existing around those stones and lithic artefacts bearing surface lines and scratches; these are
of doubtful anthropic origin, but have not, as yet, been definitively interpreted. Generally, these findings
are occasional in Mousterian sites, and when they are recovered with an excellent degree of preservation,
different methods and levels of observation can be used for investigating them. The case studies taken into
account are three sites in north Italy, where the surfaces of pebbles and flakes reveal a variety of signs and
modifications attributable to various utilitarian acts. Of these, preventive cleaning of flint nodules has not
been excluded, even if the traces on some tools reveal intentionality and repetition of gestures applied to the
construction of a curated artifact. (...) |
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"Paleo",
Revue d'archéologie préhistorique,
n. 24 - 2013
- Un campement épipaléolithique de chasseurs dans l’ouest de la France,
di M. Allard
- Diversité fonctionnelle et spatiale des campements paléolithiques et mésolithiques dans
la Polésie de Lublin (Pologne), di T. Boron
- L’art pariétal de la grotte Tastet (Sainte-Colome, Pyrénées-Atlantiques,
France): au carrefour des traditions artistiques tardiglaciaires,
di D. Garate, O. Rivero, R. Bourrillon, J. M. Pétillon
- Attribution culturelle au Gravettien ancien des fossiles humains de l’abri Cro-Magnon
(Les Eyzies-de-Tayac, Dordogne, France), di D. Henry-Gambier, R. Nespoulet, L.
Chiotti
- Art mobilier inédit du gisement de Bourrouilla à Arancou
(Pyrénées-Atlantiques, France): données techno-stylistiques et
chrono-culturelles,
di L. Aurière et alii
- Two newly identified Mousterian human rib fragments from Combe-Grenal (domme,
France),
di A. Gómez-Olivencia et alii
- Grands carnivores et mésofaune de l’Aurignacien ancien à La Quina aval (Charente, France) (fouilles V. Dujardin),
di J. B. Mallye, M. C. Soulier, V. Laroulandie
- Des œuvres d’art magdaléniennes inédites à Pont d’Ambon (Bourdeilles, Dordogne, France),
di P. Paillet, E. Man-Estier, P. Bonnet-Jacquement
- Analyse comparative structurale des diaphyses fémorales néandertaliennes BD 5 (MIS 5e)
et CDV-Tour 1 (MIS 3) de La Chaise-de-Vouthon, Charente, France,
di L. Puymerail, S. Condemi, A. Debénath
- À propos de deux molaires déciduales inférieures provenant des niveaux moustériens de la
Grotte du Bison (Arcy-sur-Cure, Yonne, France),
di A. M. Tillier et
alii |
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Stone tools from the inside out: radial point
distribution, di A. T. R. Riddle, M.
Chazan, "World Archaeology", Volume 46, Issue 1, 2014, pp. 123-136
The concept of shape is central to the classification of material culture. In the case of lithic technology, archaeologists have attempted to characterize shape quantitatively and qualitatively using diverse methods ranging from manual caliper measurements and metric ratios to digital artifact scans and statistical analyses. Three-dimensional modeling has opened up new avenues for shape analysis that permit a more holistic perspective on how objects occupy space. As a result, researchers are able to explore new qualities of artifacts that were previously inaccessible through more traditional shape analyses. This paper outlines a new method for quantifying distribution of mass in lithic specimens from three-dimensional point-cloud data. Radial point distributions (RPDs) are calculated from point-filled models based on the distances of each point to the model centroid. The resulting distribution data provide a means of quantifying three-dimensional shape that is readily compared through statistical analyses. RPD calculation requires no manual specimen alignment or landmark identification, thereby removing major sources of subjectivity. It is argued that RPDs provide a means of quantifying the ‘balance’ of lithic specimens, such as handaxes, allowing researchers to explore this tactile aspect of stone tools in conjunction with more traditional visual aspects of shape. |
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A biometric re-evaluation of recent claims for Early Upper Palaeolithic wolf domestication in
Eurasia, di M. Boudadi-Malignea, G. Escarguel, "Journal of Archaeological Science", Volume 45, May 2014, Pages 80–89
The timing of wolf domestication remains a subject of intense debate, especially as recent genetic, morphological and radiometric analyses of relevant skeletal material apparently demonstrate the presence of canids on Eurasian Early Upper Palaeolithic sites to be more widespread than previously envisaged. However, numerous questions still surround wolf domestication, not least of which is satisfactorily explaining the process whereby this social carnivore progressively became a ‘member’ of human
societies. The analysis presented here emphasises the substantial variability of both modern and Pleistocene wolf populations, and in doing so, further highlights the need for caution when considering species attributions and, more particularly, accurately identifying dog rather than wolf remains in archaeological assemblages. A combination of biometric and morphological data provides a reliable basis for critiquing a series of recent publications purportedly demonstrating the presence of dogs alongside humans during the Early Upper
Palaeolithic. |
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The effect of raw material on inter-analyst variation and analyst accuracy for lithic analysis: a case study from Olduvai Gorge,
di T. Proffitt, I. de la Torre, "Journal of Archaeological Science", Volume 45, May 2014, Pages 270–283
This study aims to understand what effect, in terms of inter-analysis variation and analyst accuracy, different raw material types have on modern technological analyses of lithic assemblages. This is done through a series of blind analysis tests undertaken on experimentally derived assemblages of cores and flakes. Novelties of our approach include the introduction of refit studies as a method to assess analyst's accuracy, and the use of statistical tests specifically designed to address inter-analyst variability, common in other disciplines but rarely used in Archaeology. The experimental assemblages were produced from raw materials collected at Olduvai Gorge, an archaeological sequence that has been a source for studies of early human technology for several decades, and where re-analyses of the same assemblages have usually offered different interpretations. The results of the blind analyses are compared to the true technological values obtained through full refit analysis of the experimental material, and suggest that there is a significant difference in terms of inter-analyst variability as well as accuracy related to different raw materials. Our paper highlights the interpretative problems posed by difficult-to-analyse raw materials such as quartzite, and stresses subjectivity present in stone-tool technological studies, which may contribute to explain differences in the interpretation of Early Stone Age lithic assemblages. |
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Diet of upper paleolithic modern humans: Evidence from microwear texture
analysis, di S. El Zaatari, J. J. Hublin, "American Journal of Physical Anthropology", Volume 153, Issue 4, pages 570–581, April 2014
This article presents the results of the occlusal molar microwear texture analysis of 32 adult Upper Paleolithic modern humans from a total of 21 European sites dating to marine isotope stages 3 and 2. The occlusal molar microwear textures of these specimens were analyzed with the aim of examining the effects of the climatic, as well as the cultural, changes on the diets of the Upper Paleolithic modern humans. The results of this analysis do not reveal any environmentally driven dietary shifts for the Upper Paleolithic hominins indicating that the climatic and their associated paleoecological changes did not force these humans to significantly alter their diets in order to survive. However, the microwear texture analysis does detect culturally related changes in the Upper Paleolithic humans' diets. Specifically, significant differences in diet were found between the earlier Upper Paleolithic individuals, i.e., those belonging to the Aurignacian and Gravettian contexts, and the later Magdalenian ones, such that the diet of the latter group was more varied and included more abrasive foods compared with those of the former. Am J Phys Anthropol 153:570–581, 2014. © 2014 Wiley Periodicals, Inc. |
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Evidence for a 15N positive excursion in terrestrial foodwebs at the Middle to Upper Palaeolithic transition in south-western France: Implications for early modern human palaeodiet and palaeoenvironment,
di H. Bocherens, D. G. Drucker, S. Madelaine, "Journal of Human Evolution", Volume 69, April 2014, Pages 31–43
The Middle to Upper Palaeolithic transition around 35,000 years ago coincides with the replacement of Neanderthals by anatomically modern humans in Europe. Several hypotheses have been suggested to explain this replacement, one of them being the ability of anatomically modern humans to broaden their dietary spectrum beyond the large ungulate prey that Neanderthals consumed exclusively. This scenario is notably based on higher nitrogen-15 amounts in early Upper Palaeolithic anatomically modern human bone collagen compared with late Neanderthals. In this paper, we document a clear increase of nitrogen-15 in bone collagen of terrestrial herbivores during the early Aurignacian associated with anatomically modern humans compared with the stratigraphically older Châtelperronian and late Mousterian fauna associated with Neanderthals. Carnivores such as wolves also exhibit a significant increase in nitrogen-15, which is similar to that documented for early anatomically modern humans compared with Neanderthals in Europe. A shift in nitrogen-15 at the base of the terrestrial foodweb is responsible for such a pattern, with a preserved foodweb structure before and after the Middle to Upper Palaeolithic transition in south-western France. Such an isotopic shift in the terrestrial ecosystem may be due to an increase in aridity during the time of deposition of the early Aurignacian layers. If it occurred across Europe, such a shift in nitrogen-15 in terrestrial foodwebs would be enough to explain the observed isotopic trend between late Neanderthals and early anatomically modern humans, without any significant change in the diet composition at the Middle to Upper Palaeolithic transition. |
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Plant foods and the dietary ecology of Neanderthals and early modern
humans, di A. G. Henry, A. S. Brooks, D. R. Piperno, "Journal of Human Evolution", Volume 69, April 2014, Pages 44–54
One of the most important challenges in anthropology is understanding the disappearance of Neanderthals. Previous research suggests that Neanderthals had a narrower diet than early modern humans, in part because they lacked various social and technological advances that lead to greater dietary variety, such as a sexual division of labor and the use of complex projectile weapons. The wider diet of early modern humans would have provided more calories and nutrients, increasing fertility, decreasing mortality and supporting large population sizes, allowing them to out-compete Neanderthals. However, this model for Neanderthal dietary behavior is based on analysis of animal remains, stable isotopes, and other methods that provide evidence only of animal food in the diet. This model does not take into account the potential role of plant food. Here we present results from the first broad comparison of plant foods in the diets of Neanderthals and early modern humans from several populations in Europe, the Near East, and Africa. Our data comes from the analysis of plant microremains (starch grains and phytoliths) in dental calculus and on stone tools. Our results suggest that both species consumed a similarly wide array of plant foods, including foods that are often considered low-ranked, like underground storage organs and grass seeds. Plants were consumed across the entire range of individuals and sites we examined, and none of the expected predictors of variation (species, geographic region, or associated stone tool technology) had a strong influence on the number of plant species consumed. Our data suggest that Neanderthal dietary ecology was more complex than previously thought. This implies that the relationship between Neanderthal technology, social behavior, and food acquisition strategies must be better explored. |
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The chronology of the earliest Upper Palaeolithic in northern Iberia: New insights from L'Arbreda, Labeko Koba and La Viña,
di R.E. Wood et alii, "Journal of Human Evolution", Volume 69, April 2014, Pages 91–109
Since the late 1980s, northern Iberia has yielded some of the earliest radiocarbon dated Aurignacian assemblages in Western Europe, probably produced by anatomically modern humans (AMHs). This is at odds with its location furthest from the likely eastern entry point of AMHs, and has also suggested to some that the Châtelperronian resulted from cultural transfer from AMHs to Neanderthals. However, the accuracy of the early chronology has been extensively disputed, primarily because of the poor association between the dated samples and human activity. Here, we test the chronology of three sites in northern Iberia, L'Arbreda, Labeko Koba and La Viña, by radiocarbon dating ultrafiltered collagen from anthropogenically modified bones. The published dates from Labeko Koba are shown to be significant underestimates due to the insufficient removal of young contaminants. The early (c.44 ka cal BP [thousands of calibrated years before present]) Aurignacian chronology at L'Arbreda cannot be reproduced, but the reason for this is difficult to ascertain. The existing chronology of La Viña is found to be approximately correct. Together, the evidence suggests that major changes in technocomplexes occurred contemporaneously between the Mediterranean and Atlantic regions of northern Iberia, with the Aurignacian appearing around 42 ka cal BP, a date broadly consistent with the appearance of this industry elsewhere in Western Europe. |
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Evidence for the repeated use of a central hearth at Middle Pleistocene (300 ky ago) Qesem Cave,
Israel, di R.
Shahack-Grossa, F. Berna, P. Karkanas, C. Lemorini, A. Gopher, R. Barkai, "Journal of Archaeological
Science", Volume 44, April 2014, Pages 12–21
A major debate in prehistory revolves around the time and place of the earliest habitual use of fire and the hominin species responsible for it. Here we present a newly discovered hearth at Qesem Cave (Israel) that was repeatedly used and was the focus of hearth-centered human activities, as early as three-hundred-thousand years ago. The hearth, identified based on mineralogical and microscopic criteria, contains two superimposed use cycles, each composed of shorter episodes – possibly the earliest superimposed hearth securely identified to date. The hearth covers ca. 4 m2 in area making it a uniquely large hearth in comparison to any contemporaneous hearth identified thus far, possibly indicating it has been used by a relatively large group of people. In addition, the hearth is located in the center of the cave and is associated with butchered animal remains and a dense flint assemblage. The flint assemblage indicates spatially differentiated meat cutting and hide working activity areas. The central location of the hearth within the cave and the activities associated with it may reflect an embedded perception of space organization of the Qesem Cave inhabitants. Since fire was habitually used throughout the 420–200 ky sequence of Qesem Cave, where preservation conditions are alike throughout, we suggest that this unique hearth may reflect a development in nature and most probably in the intensity of fire use in Qesem Cave, from ca. 300 ka ago onwards. |
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Magdalenian antler projectile point design: Determining original form for uni- and bilaterally barbed
points, di M. C. Langley, "Journal of Archaeological Science", Volume 44, April 2014, Pages 104–116
Maintenance and discard patterns are a central aspect of projectile point analyses. Unfortunately, while the examination of maintenance and discard patterns for lithic technologies is well advanced, osseous projectile point maintenance and discard analyses remain in their infancy. In the Magdalenian context, a large part of this situation is owing to the fact that the form and proportions of osseous points at the time of initial manufacture have rarely been clearly described, nor particularly well understood, by researchers. This paper focuses on uni- and bilaterally barbed points manufactured from antler and dating to the Late Magdalenian. Through examination of 732 barbed point artefacts recovered from 18 sites located throughout France and Germany, along with engravings on portable art, and a brief consideration of ethnographic data, an updated proposal for the original proportions of these iconic barbed weapon tips can be made. Knowledge of these dimensions is essential if researchers are to reconstruct the reduction of these artefacts through use, maintenance and rejuvenation cycles. |
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Searching for consistencies in Châtelperronian pigment
use, di L. Dayet, F. d’Errico, R. Garcia-Moreno, "Journal of Archaeological
Science", Volume 44, April 2014, Pages 180–193
Evidence supporting the hypothesis that Neanderthals developed cultural adaptations comparable to those associated with the Upper Palaeolithic is controversial, and come from a handful of sites, mainly attributed to the Châtelperronian. Pigments play a growing role in this debate. We present a critical review of available information on Châtelperronian pigment use, and submit pigment lumps from three Châtelperronian sites, Roc-de-Combe (Lot), Le Basté, and Bidart
(Pyrénées Atlantiques) to a microscopic, elemental and mineralogical analysis using multifocus optical microscopy, SEM-EDS, XRF, Raman, and μXRD techniques. The thirty-nine pigment lumps from Roc-de-Combe consist of a great variety of red and black iron and manganese oxide rich rocks, probably collected at close and relatively distant sources. A third of the pieces from Roc-de-Combe and one piece from Bidart and Le Basté bear percussion marks and facets produced by grinding. Our results demonstrate that a consistent use of pigments, interpreted as reflecting site function, occurs at sites located in the South-western area of the known distribution of the Châtelperronian. Considering that this area is distant from the location of the earliest Proto-Aurignacian and Early Aurignacian sites from Germany and Austria, and that available radiocarbon dating indicate a chronological anteriority of Roc-de-Combe Châtelperronian, we argue that the hypothesis that Châtelperronian pigment use results from Neanderthal ‘acculturation’ is improbable. |
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'Homo' is the only primate whose tooth size decreases as its brain size
increases, April 3, 2014
Scientists have discovered a curious characteristic of the members of the human lineage, classed as the genus Homo: they are the only primates where, throughout their 2.5-million year history, the size of their teeth has decreased in tandem with the increase in their brain
size. (...) |
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Human evolution: Fifty years after Homo
habilis, di B. Wood, "Nature", 02 April 2014, Volume 508, Number 7494
Half a century ago, the British–Kenyan palaeoanthropologist Louis Leakey and his colleagues made a controversial proposal: a collection of fossils from the Great Rift Valley in Tanzania belonged to a new species within our own genus1. The announcement of Homo habilis was a turning point in palaeoanthropology. It shifted the search for the first humans from Asia to Africa and began a controversy that endures to this day. Even with all the fossil evidence and analytical techniques from the past 50 years, a convincing hypothesis for the origin of Homo remains elusive.
In 1960, the twig of the tree of life that contains hominins — modern humans, their ancestors, and other forms more closely related to humans than to chimpanzees and bonobos — looked remarkably straightforward. At its base was Australopithecus, the apeman that palaeoanthropologists had been recovering in southern Africa since the 1920s. This, the thinking went, was replaced by the taller, larger-brained Homo erectus from Asia, which spread to Europe and evolved into Neanderthals, which evolved into Homo sapiens. But what lay between the australopiths and H. erectus, the first known
human? (...) |
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Did Europeans Get Fat From
Neandertals?, di A. Gibbons, "Science NOW", 1 April 2014
Neandertals and modern Europeans had something in common: They were fatheads of the same ilk. A new genetic analysis reveals that our brawny cousins had a number of distinct genes involved in the buildup of certain types of fat in their brains and other tissues—a trait shared by today’s Europeans, but not Asians. Because two-thirds of our brains are built of fatty acids, or lipids, the differences in fat composition between Europeans and Asians might have functional consequences, perhaps in helping them adapt to colder climates or causing metabolic
diseases. (...) |
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Humans and saber-toothed tiger met in Germany 300,000 years
ago, April 1, 2014
Scientists excavating at the Schöningen open-cast coal mine in north-central Germany have discovered the remains of a saber-toothed cat preserved in a layer some 300,000 years old -- the same stratum in which wooden spears were found, indicating that early humans also inhabited the area, which at that time was the bank of a shallow lake.
(...) |
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Neanderthal ancestry drives evolution of lipid catabolism in contemporary
Europeans, di E. E.
Khrameeva, "Nature Communications" 5, 01 April 2014, doi:10.1038/ncomms4584
Although Neanderthals are extinct, fragments of their genomes persist in contemporary humans. Here we show that while the genome-wide frequency of Neanderthal-like sites is approximately constant across all contemporary out-of-Africa populations, genes involved in lipid catabolism contain more than threefold excess of such sites in contemporary humans of European descent. Evolutionally, these genes show significant association with signatures of recent positive selection in the contemporary European, but not Asian or African populations. Functionally, the excess of Neanderthal-like sites in lipid catabolism genes can be linked with a greater divergence of lipid concentrations and enzyme expression levels within this pathway, seen in contemporary Europeans, but not in the other populations. We conclude that sequence variants that evolved in Neanderthals may have given a selective advantage to anatomically modern humans that settled in the same geographical
areas. (...) |
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European Middle Palaeolithic (MIS 8 – MIS 3): cultures, environment, chronology,
Volumes 326–327, Pages 1-518 (1 April 2014). Edited by Adam Nadachowski and Krzysztof Jan Cyrek
- European Middle Palaeolithic (MIS 8–MIS 3): Cultures, environment, chronology
- Sediments of Biśnik Cave (Poland): Lithology and stratigraphy of the Middle Palaeolithic site
- Middle Palaeolithic cultural levels from Middle and Late Pleistocene sediments of Biśnik Cave, Poland
- Rodent palaeofaunas from Biśnik Cave (Kraków-Częstochowa Upland, Poland): Palaeoecological, palaeoclimatic and biostratigraphic reconstruction
- Middle Palaeolithic remains of reindeer (Rangifer tarandus Linnaeus, 1758) from Biśnik Cave and other cave localities from Poland
- Giant deer Megaloceros giganteus Blumenbach, 1799 (Cervidae, Mammalia) from Palaeolithic of Eastern Europe
- Presence of Panthera gombaszoegensis (Kretzoi, 1938) in the late Middle Pleistocene of Biśnik Cave, Poland, with an overview of Eurasian jaguar size variability
- Paleoecology of bears from MIS 8–MIS 3 deposits of Biśnik Cave based on stable isotopes (δ13C, δ18O) and dental cementum analyses
- Middle Paleolithic sequences of the Ciemna Cave (Prądnik valley, Poland): The problem of synchronization
- Micoquian assemblage and environmental conditions for the Neanderthals in Obłazowa Cave, Western Carpathians, Poland
- New radiocarbon data from Micoquian layers of the Kůlna Cave (Czech Republic)
- Geoarchaeology of the Middle Palaeolithic locality at Znojmo, southern Moravia
- Archaeological sites of the Süttő Travertine Complex (Hungary) with stratigraphical and paleoecological implications from their faunas
- Stratigraphic position and natural environment of the oldest Middle Palaeolithic in central Podolia, Ukraine: New data from the Velykyi Glybochok site
- Character and chronology of natural events modifying the Palaeolithic settlement records in the Ihrovytsia site (Podolia, the Ukraine)
- Mammoths of the Molodova V Paleolithic site (Dniester Basin): The case of dental thin-enamel specialization and paleoecological adaptation
- Environment and climate of the Crimean Mountains during the Late Pleistocene inferred from stable isotope analysis of red deer (Cervus elaphus) bones from the Emine-Bair-Khosar Cave
- New geoarcheological studies at the Middle Paleolithic sites of Khotylevo I and Betovo (Bryansk oblast, Russia): Some preliminary results
- The Middle Palaeolithic of the central Trans-Urals: Present evidence
- When Neanderthals used cave bear (Ursus spelaeus) remains: Bone retouchers from unit 5 of Scladina Cave (Belgium)
- First Neanderthal settlements in northern Iberia: The Acheulean and the emergence of Mousterian technology in the Cantabrian region
- A wildcat (Felis silvestris) butchered by Neanderthals in Level O of the Abric Romaní site (Capellades, Barcelona, Spain)
- Environmental and climatic context of Neanderthal occupation in southwestern Europe during MIS3 inferred from the small-vertebrate assemblages
- Manzanares Valley (Madrid, Spain): A good country for Proboscideans and Neanderthals
- Middle Palaeolithic variability in Central Europe: Mousterian vs Micoquian
- The beginnings and diversity of Levallois methods in the early Middle Palaeolithic of Central Europe
- The earliest Palaeolithic bifacial leafpoints in Central and Southern Europe: Techno-functional approach
- The origin of symbolic behavior of Middle Palaeolithic humans: Recent controversies
- The Polish fossil record of the wolf Canis and the deer Alces, Capreolus, Megaloceros, Dama and Cervus in an evolutionary perspective
- Late Pleistocene European and Late Miocene African accelerations of faunal change in relation to the climate and as a background to human evolution
- ‘Steppe’ mammoth (Mammuthus trogontherii) remains in their geological and cultural context from Bełchatów (Poland): A consideration of human exploitation in the Middle Pleistocene
- The Palaeolithic locality Schöningen (Germany): A review of the mammalian record
- Vertebrates from the Middle Pleistocene locality Lysa Gora 1 in Ukraine
- Middle Paleolithic bone retouchers in Southeastern France: Variability and functionality |
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On the chronology of the
Uluzzian, di K. Douka et
alii, "Journal of Human Evolution", Volume 68, March 2014, Pages 1–13
The Uluzzian, one of Europe's ‘transitional’ technocomplexes, has gained particular significance over the past three years when the only human remains associated with it were attributed to modern humans, instead of Neanderthals as previously thought. The position of the Uluzzian at stratified sequences, always overlying late Mousterian layers and underlying early Upper Palaeolithic ones, highlights its significance in understanding the passage from the Middle to Upper Palaeolithic, as well as the replacement of Neanderthals by modern humans in southeastern Mediterranean Europe. Despite several studies investigating aspects of its lithic techno-typology, taxonomy and material culture, the Uluzzian chronology has remained extremely poorly-known, based on a handful of dubious chronometric determinations. Here we aim to elucidate the chronological aspect of the technocomplex by presenting an integrated synthesis of new radiocarbon results and a Bayesian statistical approach from four stratified Uluzzian cave sequences in Italy and Greece (Cavallo, Fumane, Castelcivita and Klissoura 1). In addition to building a reliable chronological framework for the Uluzzian, we examine its appearance, tempo-spatial spread and correlation to previous and later Palaeolithic assemblages (Mousterian, Protoaurignacian) at the relevant regions. We conclude that the Uluzzian arrived in Italy and Greece shortly before 45,000 years ago and its final stages are placed at
~39,500 years ago, its end synchronous (if not slightly earlier) with the Campanian Ignimbrite eruption. |
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Geometric properties and comparative biomechanics of Homo floresiensis
mandibles, di D. J. Daeglinga, B. A. Patel, W. L. Jungers, "Journal of Human
Evolution", Volume 68, March 2014, Pages 36–46
The hypodigm of Homo floresiensis from the cave of Liang Bua on Flores Island in the archipelago of Indonesia includes two mandibles (LB1/2 and LB6/1). The morphology of their symphyses and corpora has been described as sharing similarities with both australopiths and early Homo despite their Late Pleistocene age. Although detailed morphological comparisons of these mandibles with those of modern and fossil hominin taxa have been made, a functional analysis in the context of masticatory biomechanics has yet to be
performed. Utilizing data on cortical bone geometry from computed tomography scans, we compare the mechanical attributes of the LB1 and LB6 mandibles with samples of modern Homo, Pan, Pongo, and Gorilla, as well as fossil samples of Paranthropus robustus, Australopithecus africanus and South African early Homo. Structural stiffness measures were derived from the geometric data to provide relative measures of mandibular corpus strength under hypothesized masticatory loading regimes. These mechanical variables were evaluated relative to bone area, mandibular length and estimates of body size to assess their functional affinities and to test the hypothesis that the Liang Bua mandibles can be described as scaled-down variants of either early hominins or modern
humans. Relative to modern hominoids, the H. floresiensis material appears to be relatively strong in terms of rigidity in torsion and transverse bending, but is relatively weak under parasagittal bending. Thus, they are ‘robust’ relative to modern humans (and comparable with australopiths) under some loads but not others. Neither LB1 nor LB6 can be described simply as ‘miniaturized’ versions of modern human jaws since mandible length is more or less equivalent in Homo sapiens and H. floresiensis. The mechanical attributes of the Liang Bua mandibles are consistent with previous inferences that masticatory loads were reduced relative to australopiths but remained elevated relative to modern Homo. |
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Early Upper Paleolithic bone processing and insights into small-scale storage of fats at Vale Boi, southern
Iberia, di T. Manne, "Journal of Archaeological Science", Volume 43, March 2014, Pages 111–123
The Upper Paleolithic site of Vale Boi in coastal, southwestern Portugal currently represents one of the earliest known cases of grease-rendering in Eurasia, with initial occupation of the site occurring during the early Gravettian at ∼28,000 BP. Already by this time, Vale Boi foragers were intensively processing ungulate carcasses by rendering grease from their bones. Zooarchaeological evidence of grease rendering includes extensive fragmentation of red deer and equine remains, abundant evidence of impact features on specimens and a lower proportion of preserved grease-rich skeletal portions. Comparisons of red deer and horse bone portions with density assays and utility indices suggest that ungulates at Vale Boi were systematically processed for their marrow and bone grease. The early onset of grease-rendering at Vale Boi, in addition to heavy rabbit exploitation may have been spurred by ungulate communities unable to support human consumer-demand on their own. However, the continued practice of grease-rendering at Vale Boi over the course of the Upper Paleolithic may also be closely related to the significance of bone fats for mobile hunter–gatherers – as a highly valued, storable and easily-transportable resource. |
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An Early Upper Palaeolithic decorated bone tubular rod from Pod Hradem Cave, Czech
Republic, di D. Wright, L. Nejman, F. d'Errico, M. Králík, R. Wood, M. Ivanov, Š. Hladilová, "Antiquity", Issue 339, March
2014, Volume: 88, Number: 339, Page: 30–46
Personal ornaments are a notable feature of the Early Upper Palaeolithic in Europe and an important expression of modern human identity. The tubular bone rod from Pod Hradem Cave in the Czech Republic is the first example of its kind from Central Europe. Laboratory examination reveals the techniques used in its manufacture and underlines the skill of its maker. AMS dates and Bayesian modelling suggest a cultural association with the Early Aurignacian period. It illustrates the cultural links across large areas of Europe at this time, although it is unique in its specific combination of size, raw material and decorative
features. (...) |
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New views on old hands: the context of stencils in El Castillo and La Garma caves (Cantabria,
Spain), di P. Pettitt, A. Maximiano Castillejo, P. Arias, R. Ontañón Peredo, R.
Harrison, "Antiquity", Issue 339, March 2014, Volume: 88, Number: 339, Page: 47–63
Hand stencils are an intriguing feature of prehistoric imagery in caves and rockshelters in several parts of the world, and the recent demonstration that the oldest of those in Western Europe date back to 37 000 years or earlier further enhances their significance. Their positioning within the painted caves of France and Spain is far from random, but responds to the shapes and fissures in the cave walls. Made under conditions of low and flickering light, the authors suggest that touch—‘palpation’—as much as vision, would have driven and directed the locations chosen for these stencils. Detailed study of the images in two Cantabrian caves also allows different individuals to be distinguished, most of whom appear to have been female. Finally, the project reveals deliberate associations between the stencils and features on the cave walls.
(...) |
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Defining Magdalenian cultural groups in Franco-Cantabria by the formal analysis of portable
artworks, di
O. Rivero, G. Sauvet, "Antiquity", Issue 339, March
2014, Volume: 88, Number: 339, Page: 64–80
The motifs, techniques and stylistic features of Upper Palaeolithic art offer enormous potential for the investigation of social and cultural interactions in south-western France and northern Spain during the later stages of the last ice age. The key regions of Aquitaine, Cantabria and the Pyrenees clearly share an overall family resemblance, but detailed analysis of horse heads on portable objects of bone, antler and stone from Magdalenian contexts reveal that particular features can be attributed to different regions at different periods. Furthermore, the patterns of interconnection are structured very differently in the Upper Magdalenian than in the Middle Magdalenian, perhaps as rising temperatures in the latter period led to territorial expansion and social
realignment. (...) |
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Le site de Kocabaş, bassin de
Denizli, Anatolie, Turquie,
"L'Antropologie", Volume 118, Issue 1, Pages 1-114
(January–March 2014)
- Historique de la découverte et des recherches sur la calotte crânienne d’Homo erectus archaïque de Kocabaş, Bassin de Denizli, Anatolie, Turquie
- La calotte crânienne de l’Homo erectus de Kocabaş (Bassin de Denizli, Turquie)
- Conclusion. Bilan des recherches interdisciplinaires effectuées sur le site de l’Homo erectus de Denizli, Kocabaş, Bassin de Denizli, Anatolie, Turquie. L’Homo erectus aux portes de l’Europe |
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Human evolution: The Neanderthal in the
family, di E. Callaway, "Nature",
27 March 2014, Volume 507, Number 7493
Before ancient DNA exposed the sexual proclivities of Neanderthals or the ancestry of the first Americans, there was the
quagga. An equine oddity with the head of a zebra and the rump of a donkey, the last quagga (Equus quagga quagga) died in 1883. A century later, researchers
published around 200 nucleotides sequenced from a 140-year-old piece of quagga muscle. Those scraps of DNA — the first genetic secrets pulled from a long-dead organism — revealed that the quagga was distinct from the mountain zebra (Equus zebra).
More significantly, the research showed that from then on, examining fossils would no longer be the only way to probe extinct life. “If the long-term survival of DNA proves to be a general phenomenon,” geneticists Russell Higuchi and Allan Wilson of the University of California, Berkeley, and their colleagues noted in their quagga
paper, “several fields including palaeontology, evolutionary biology, archaeology and forensic science may benefit.”
(...) |
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Neandertal clavicle
length, di E. Trinkaus, T. W. Holliday, B. M. Auerbach,
"Proceedings of the National Academy of Sciences",
March 25, 2014, vol. 111, no. 12, pp. 4438–4442
The Late Pleistocene archaic humans from western Eurasia (the Neandertals) have been described for a century as exhibiting absolutely and relatively long clavicles. This aspect of their body proportions has been used to distinguish them from modern humans, invoked to account for other aspects of their anatomy and genetics, used in assessments of their phylogenetic polarities, and used as evidence for Late Pleistocene population relationships. However, it has been unclear whether the usual scaling of Neandertal clavicular lengths to their associated humeral lengths reflects long clavicles, short humeri, or both. Neandertal clavicle lengths, along with those of early modern humans and latitudinally diverse recent humans, were compared with both humeral lengths and estimated body masses (based on femoral head diameters). The Neandertal do have long clavicles relative their humeri, even though they fall within the ranges of variation of early and recent humans. However, when scaled to body masses, their humeral lengths are relatively short, and their clavicular lengths are indistinguishable from those of Late Pleistocene and recent modern humans. The few sufficiently complete Early Pleistocene Homo clavicles seem to have relative lengths also well within recent human variation. Therefore, appropriately scaled clavicular length seems to have varied little through the genus Homo, and it should not be used to account for other aspects of Neandertal biology or their phylogenetic status. |
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The genomic landscape of Neanderthal ancestry in present-day
humans, di S. Sankararaman
et alii, "Nature" 507, 354–357 (20 March 2014)
Genomic studies have shown that Neanderthals interbred with modern humans, and that non-Africans today are the products of this mixture1, 2. The antiquity of Neanderthal gene flow into modern humans means that genomic regions that derive from Neanderthals in any one human today are usually less than a hundred kilobases in size. However, Neanderthal haplotypes are also distinctive enough that several studies have been able to detect Neanderthal ancestry at specific
loci. We systematically infer Neanderthal haplotypes in the genomes of 1,004 present-day
humans. Regions that harbour a high frequency of Neanderthal alleles are enriched for genes affecting keratin filaments, suggesting that Neanderthal alleles may have helped modern humans to adapt to non-African environments. We identify multiple Neanderthal-derived alleles that confer risk for disease, suggesting that Neanderthal alleles continue to shape human biology. An unexpected finding is that regions with reduced Neanderthal ancestry are enriched in genes, implying selection to remove genetic material derived from Neanderthals. Genes that are more highly expressed in testes than in any other tissue are especially reduced in Neanderthal
ancestry, and there is an approximately fivefold reduction of Neanderthal ancestry on the X chromosome, which is known from studies of diverse species to be especially dense in male hybrid sterility
genes. These results suggest that part of the explanation for genomic regions of reduced Neanderthal ancestry is Neanderthal alleles that caused decreased fertility in males when moved to a modern human genetic background. |
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'Little Foot' Fossil Could Be Human
Ancestor, di M.Balter, "Science NOW", 14 March 2014
He may be called Little Foot, but for human evolution researchers he’s a big deal: His is the most complete skeleton known of an early member of the human lineage. Ever since the skeleton was discovered in a South African cave in the 1990s and named for its relatively small foot bones, researchers have been fiercely debating how old it is, with estimates ranging from about 2 million years to more than 3 million. A new geological study of the cave concludes that Little Foot is at least 3 million years old. If correct, that would mean he is old enough to be a direct ancestor of today’s humans, and could shift South Africa to the forefront of human
evolution. (...) |
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How apes and humans evolved side by
side, March 4, 2014
In a new book, a paleoanthropologist incorporates his research with a synthesis of a vast amount of research from other scientists who study primate evolution and behavior. The book explains how apes and humans evolved in relation to one another, and why humans became a bipedal, tool-making, culture-inventing species.
(...) |
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Krotovinas, pedogenic processes and stratigraphic ambiguities of the Upper Palaeolithic sites Kostenki and Borshchevo
(Russia), di D. Pietscha, P. Kühn, S. Lisitsyn, A. Markova, A.
Sinitsyn, "Quaternary International", Volume 324, 4 March 2014, Pages 172–179
The excavations of the Upper Palaeolithic sites of Kostenki and Borshchevo, located in the Middle Russian Plain, bear several meters of loess-derived colluvial deposits of the Middle and Late Valdai, which cover alluvial sediments of the Don floodplain. At least four cultural layers and more than three paleosol units occur within the colluvial deposits. A high number of krotovinas is most obvious, mainly the burrows of Cricetus cricetus and Lagurus lagurus, which on first view seem only to disturb sediment and soil stratigraphy. To disprove this assumption, the present paper investigates the significance of krotovina fillings within soil research by applying micromorphological analysis. The study gives insight into different filling materials, soil forming processes inside abandoned and filled burrow systems, and surrounding material. In some cases, krotovina fillings in this part of the Middle Russian Plain can be areas of bulking and compaction, of preferential paths of infiltration followed by calcium carbonate depletion, and of drying followed by secondary calcification. Further, burrows are paths for second and third generations of soil faunal activities. |
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Resurrecting Surviving Neandertal Lineages from Modern Human
Genomes, di B. Vernot, J. M. Akey, "Science", 28 February
2014, Vol. 343, no. 6174, pp. 1017-1021
Anatomically modern humans overlapped and mated with Neandertals such that non-African humans inherit ~1 to 3% of their genomes from Neandertal ancestors. We identified Neandertal lineages that persist in the DNA of modern humans, in whole-genome sequences from 379 European and 286 East Asian individuals, recovering more than 15 gigabases of introgressed sequence that spans ~20% of the Neandertal genome (false discovery rate = 5%). Analyses of surviving archaic lineages suggest that there were fitness costs to hybridization, admixture occurred both before and after divergence of non-African modern humans, and Neandertals were a source of adaptive variation for loci involved in skin phenotypes. Our results provide a new avenue for paleogenomics studies, allowing substantial amounts of population-level DNA sequence information to be obtained from extinct groups, even in the absence of fossilized remains. |
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I dieci padri dell'Homo
Sapiens, 25 Febbraio 2014
L'evoluzione dell'Homo Sapiens è stato un lungo viaggio, iniziato nelle savane del continente africano, e passato attraverso una serie di tappe e migrazioni successive prima di portare la nostra specie a colonizzare quasi tutti gli angoli della Terra. Uno studio dell'Università La Sapienza ha analizzato oggi la distribuzione geografica e la filogenesi del cromosoma Y umano, identificando varianti genetiche che hanno permesso di ridisegnare nuovi scenari relativi all’origine e agli spostamenti dell’Homo sapiens. I nuovi risultati infatti spingerebbero a retrodatare le tappe migratorie del Sapiens, avvalorando l’ipotesi che i primi passi della nostra specie siano avvenuti in Africa centro-occidentale, e non nell’area orientale del continente, come ritenuto finora da molti scienziati. La nostra specie avrebbe inoltre circa 10 “padri fondatori”, ma solo uno di loro avrebbe dato origine alle linee di discendenza maschili presenti al di fuori del continente africano.
(...) |
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The Evolution of Hominin Behavior during the Oldowan-Acheulian Transition: Recent Evidence from Olduvai Gorge and Peninj (Tanzania),
Volumes 322–323, Pages 1-314 (16 February 2014). Edited by Manuel Domínguez-Rodrigo, Fernando Díez-Martín, Audax Mabulla, Enrique Baquedano, Henry Bunn and Charles Musiba
- The evolution of hominin behavior during the Oldowan–Acheulean transition: Recent evidence from Olduvai Gorge and Peninj (Tanzania)
- Geo-archaeological and geometrically corrected reconstruction of the 1.84 Ma FLK Zinj paleolandscape at Olduvai Gorge, Tanzania
- A critical re-evaluation of bone surface modification models for inferring fossil hominin and carnivore interactions through a multivariate approach: Application to the FLK Zinj archaeofaunal assemblage (Olduvai Gorge, Tanzania)
- Prey mortality profiles indicate that Early Pleistocene Homo at Olduvai was an ambush predator
- Paleoclimatic and paleoenvironmental framework of FLK North archaeological site, Olduvai Gorge, Tanzania
- Paleosol diversity in the Olduvai Basin, Tanzania: Effects of geomorphology, parent material, depositional environment, and groundwater on soil development
- Reconstruction of a Pleistocene paleocatena using micromorphology and geochemistry of lake margin paleo-Vertisols, Olduvai Gorge, Tanzania
- Taphonomic estimates of competition and the role of carnivore avoidance in hominin site use within the Early Pleistocene Olduvai Basin
- New archaeological and geological research at SHK main site (Bed II, Olduvai Gorge, Tanzania)
- On meat eating and human evolution: A taphonomic analysis of BK4b (Upper Bed II, Olduvai Gorge, Tanzania), and its bearing on hominin megafaunal consumption
- Study of the SHK Main Site faunal assemblage, Olduvai Gorge, Tanzania: Implications for Bed II taphonomy, paleoecology, and hominin utilization of megafauna
- An ecological neo-taphonomic study of carcass consumption by lions in Tarangire National Park (Tanzania) and its relevance for human evolutionary biology
- Technological strategies and the economy of raw materials in the TK (Thiongo Korongo) lower occupation, Bed II, Olduvai Gorge, Tanzania
- Early Acheulean technology at Es2-Lepolosi (ancient MHS-Bayasi) in Peninj (Lake Natron, Tanzania)
- Reassessment of the Early Acheulean at EN1-Noolchalai (Ancient RHS-Mugulud) in Peninj (Lake Natron, Tanzania)
- Vegetation of Northern Tanzania during the Plio-Pleistocene: A synthesis of the paleobotanical evidences from Laetoli, Olduvai, and Peninj hominin sites
- Orientation patterns of wildebeest bones on the lake Masek floodplain (Serengeti, Tanzania) and their relevance to interpret anisotropy in the Olduvai lacustrine floodplain
- Lower Paleolithic bipolar reduction and hominin selection of quartz at Olduvai Gorge, Tanzania: What's the connection?
- Middle Stone Age archaeology at Olduvai Gorge, Tanzania |
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Separating endogenous ancient DNA from modern day contamination in a Siberian
Neandertal, di P. Skoglund
et alii, "Proceedings of the National Academy of Sciences",
February 11, 2014, vol. 111, no. 6, pp. 2229–2234
One of the main impediments for obtaining DNA sequences from ancient human skeletons is the presence of contaminating modern human DNA molecules in many fossil samples and laboratory reagents. However, DNA fragments isolated from ancient specimens show a characteristic DNA damage pattern caused by miscoding lesions that differs from present day DNA sequences. Here, we develop a framework for evaluating the likelihood of a sequence originating from a model with postmortem degradation—summarized in a postmortem degradation score—which allows the identification of DNA fragments that are unlikely to originate from present day sources. We apply this approach to a contaminated Neandertal specimen from Okladnikov Cave in Siberia to isolate its endogenous DNA from modern human contaminants and show that the reconstructed mitochondrial genome sequence is more closely related to the variation of Western Neandertals than what was discernible from previous analyses. Our method opens up the potential for genomic analysis of contaminated fossil material. |
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Hominin Footprints from Early Pleistocene Deposits at Happisburgh,
UK, di N. Ashton et
alii, February 07, 2014, DOI: 10.1371/journal.pone.0088329
- free access -
Investigations at Happisburgh, UK, have revealed the oldest known hominin footprint surface outside Africa at between ca. 1 million and 0.78 million years ago. The site has long been recognised for the preservation of sediments containing Early Pleistocene fauna and flora, but since 2005 has also yielded humanly made flint artefacts, extending the record of human occupation of northern Europe by at least 350,000 years. The sediments consist of sands, gravels and laminated silts laid down by a large river within the upper reaches of its estuary. In May 2013 extensive areas of the laminated sediments were exposed on the foreshore. On the surface of one of the laminated silt horizons a series of hollows was revealed in an area of ca. 12 m2. The surface was recorded using multi-image photogrammetry which showed that the hollows are distinctly elongated and the majority fall within the range of juvenile to adult hominin foot sizes. In many cases the arch and front/back of the foot can be identified and in one case the impression of toes can be seen. Using foot length to stature ratios, the hominins are estimated to have been between ca. 0.93 and 1.73 m in height, suggestive of a group of mixed ages. The orientation of the prints indicates movement in a southerly direction on mud-flats along the river edge. Early Pleistocene human fossils are extremely rare in Europe, with no evidence from the UK. The only known species in western Europe of a similar age is Homo antecessor, whose fossil remains have been found at Atapuerca, Spain. The foot sizes and estimated stature of the hominins from Happisburgh fall within the range derived from the fossil evidence of Homo
antecessor. (...) |
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Datation du plus vieil hominidé de Turquie, le chaînon manquant entre l'Europe et
l'Afrique? 05/02/14
Une équipe franco-turque, codirigée par le Centre de Recherche en Géosciences de l'Environnement (CNRS, Université Aix Marseille Aix en Provence), le laboratoire Histoire naturelle de l'Homme Préhistorique (CNRS, MNHN) et l'Institut de paléontologie humaine (Paris) a pu dater à plus de 1 à 1,1 millions
d'années les dépôts renfermant l'homme de Kocabas, le plus vieux fossile
d'hominidé découvert en Turquie. Ce résultat précise l'histoire de la dispersion des hominidés. Une étude parue dans la revue Earth and Planetary Science
Letters. (...) |
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Influence of lower limb configuration on walking cost in Late Pleistocene
humans, di M. Hora, V.
Sladek, "Journal of Human Evolution", Volume 67, February 2014, Pages 19–32
It has been proposed that Neandertals had about 30% higher gross cost of transport than anatomically modern humans (AMH) and that such difference implies higher daily energy demands and reduced foraging ranges in Neandertals. Thus, reduced walking economy could be among the factors contributing to the Neandertals' loss in competition with their anatomically modern successors. Previously, Neandertal walking cost had been estimated from just two parameters and based upon a pooled-sex sample. In the present study, we estimate sex-specific walking cost of Neandertals using a model accounting for body mass, lower limb length, lower limb proportions, and other features of lower limb configuration. Our results suggest that Neandertals needed more energy to walk a given distance than did AMH but the difference was less than half of that previously estimated in males and even far less pronounced in females. In contrast, comparison of the estimated walking cost adjusted to body mass indicates that Neandertals spent less energy per kilogram of body mass than AMH thanks to their lower limb configuration, males having 1–5% lower and females 1–3% lower mass-specific net cost of transport than AMH of the same sex. The primary cause of high cost of transport in Neandertal males is thus their great body mass, possibly a consequence of adaptation to cold, which was not fully offset by their cost-moderating lower limb configuration. The estimated differences in absolute energy spent for locomotion between Neandertal and AMH males would account for about 1% of previously estimated daily energy expenditure of Neandertal or AMH males. |
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Luminescence dating and palaeomagnetic age constraint on hominins from Sima de los
Huesos, Atapuerca, Spain, di
L. J. Arnold et alii, "Journal of Human Evolution", Volume 67, February 2014, Pages 85–107
Establishing a reliable chronology on the extensive hominin remains at Sima de los Huesos is critical for an improved understanding of the complex evolutionary histories and phylogenetic relationships of the European Middle Pleistocene hominin record. In this study, we use a combination of ‘extended-range’ luminescence dating techniques and palaeomagnetism to provide new age constraint on sedimentary infills that are unambiguously associated with the Sima fossil assemblage. Post-infrared-infrared stimulated luminescence (pIR-IR) dating of K-feldspars and thermally transferred optically stimulated luminescence (TT-OSL) dating of individual quartz grains provide weighted mean ages of 433 ± 15 ka (thousands of years) and 416 ± 19 ka, respectively, for allochthonous sedimentary horizons overlying the hominin-bearing clay breccia. The six replicate luminescence ages obtained for this deposit are reproducible and provide a combined minimum age estimate of 427 ± 12 ka for the underlying hominin fossils. Palaeomagnetic directions for the luminescence dated sediment horizon and underlying fossiliferous clays display exclusively normal polarities. These findings are consistent with the luminescence dating results and confirm that the hominin fossil horizon accumulated during the Brunhes Chron, i.e., within the last 780 ka. The new bracketing age constraint for the Sima hominins is in broad agreement with radiometrically dated Homo heidelbergensis fossil sites, such as Mauer and Arago, and suggests that the split of the H. neanderthalensis and H. sapiens lineages took place during the early Middle Pleistocene. More widespread numerical dating of key Early and Middle Pleistocene fossil sites across Europe is needed to test and refine competing models of hominin evolution. The new luminescence chronologies presented in this study demonstrate the versatility of TT-OSL and pIR-IR techniques and the potential role they could play in helping to refine evolutionary histories over Middle Pleistocene timescales. |
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New Data on the Exploitation of Obsidian in the Southern Caucasus (Armenia, Georgia) and Eastern Turkey, Part 2: Obsidian Procurement from the Upper Palaeolithic to the Late Bronze Age,
di C. Chataigner, B. Gratuze, Archaeometry", Volume 56, Issue 1, pages 48–69, February 2014
Within the framework of the French archaeological mission ‘Caucasus’, in a previous paper we have presented new geochemical analyses on geological obsidians from the southern Caucasus (Armenia, Georgia) and eastern Turkey. We present here the second part of this research, which deals with provenance studies of archaeological obsidians from Armenia. These new data enhance our knowledge of obsidian exploitation over a period of more than 14 000 years, from the Upper Palaeolithic to the Late Bronze Age. The proposed methodology shows that source attribution can be easily made by plotting element contents and element ratios on three simple binary diagrams. The same diagrams were used for source discrimination. As the southern Caucasus is a mountainous region for which the factor of distance as the crow flies cannot be applied, we have explored the capacity of the Geographic Information System to evaluate the nature and patterns of travel costs between the sources of obsidian and the archaeological sites. The role of the secondary obsidian deposits, which enabled the populations to acquire raw material at a considerable distance from the outcrops, is also considered. |
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The Sound of Rock Art. The Acoustics of the Rock Art of Southern Andalusia
(Spain), di M. Díaz-Andreu, C. García Benito, M. Lazarich, "Oxford Journal of
Archaeology", Volume 33, Issue 1, pages 1–18, February 2014
This paper explores the potential of acoustics to interpret the prehistoric rock art of southern Andalusia (Spain). Tests undertaken in two areas, north of the Celemín river and the Bacinete area, will form the basis of our discussion. The results obtained at a selection of rock art sites show that the two key rock art sites, El Tajo de las Figuras and the large shelter at Bacinete, both with the majority of paintings in the earlier Laguna de la Janda style, had good resonance values. In contrast, at most of the other minor sites tested, the values for resonance were negative or insignificant, regardless of whether they were painted in Laguna de la Janda or schematic style. We conclude that the major rock art sites in southern Andalusia were chosen not only for their geological appearance and location in the landscape, but also for their acoustic properties. |
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Early human occupation of Iberia: the chronological and palaeoclimatic inferences from Vallparadís
(Barcelona, Spain), di K. Martínez, J. Garcia, F. Burjachs, R. Yll, E. Carbonell, "Quaternary Science
Reviews", Volume 85, 1 February 2014, Pages 136–146
Vallparadís is one of the best calibrated and most accurately dated archaeological sites from the European Early Pleistocene. Chronological analyses combined with palaeomagnetism, ESR-U/series and OSL, and the biochronology of macro- and micromammals are fully consistent and situate the site just above the upper limit of the Jaramillo subchron. In this article we compare the mandibular first molar (m1) of individual adult specimens of Mimomys savini recovered from level 10 (EVT7) at Vallparadís with specimens from the stratigraphic sequence at Gran Dolina (Atapuerca), Fuente Nueva 3 and Barranco León D (Orce). This comparison allows us to chronostratigraphically relate level 10 at Vallparadís with level TD5 at Gran Dolina and to fix the former's chronology to around 0.98–0.95 Ma (MIS 27) and, therefore, prior to level TD6 in which fossil remains of Homo antecessor were recovered. The chronology of Vallparadís and the set of contemporary palaeoclimatic proxies regarding the Iberian Peninsula strengthen the hypothesis that hominins continuously populated Europe, at least in Iberia, throughout the late Early Pleistocene between the Jaramillo subchron and the Matuyama–Brunhes boundary by overcoming the climatic fluctuations and changes to the landscape that occurred during this period. |
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Shell bead production in the Upper Paleolithic of Vale Boi (SW Portugal): an experimental
perspective, di F. Tátá, J. Cascalheira, J. Marreiros, T. Pereira, N. Bicho, "Journal of Archaeological Science",
Volume 42, February 2014, Pages 29–41
In this paper, we focused on shell bead production during the Upper Paleolithic at the site of Vale Boi in Southwestern Portugal as a means of understanding social visual transmission. Vale Boi has a long sequence dated to between c. 32 and 7 ka cal BP with well-preserved bone and shell assemblages from early Gravettian to Neolithic times. The archaeological shell bead collection includes over 100 specimens from the Gravettian, Proto-Solutrean, Solutrean and Magdalenian layers from Vale Boi, including at least 5 species: Littorina obtusata or Littorina fabalis, Trivia sp., Antalis sp., Mitrella scripta and Theodoxus
fluviatilis. Experimental replication techniques included scratching, sawing, and hammering using lithic and bone implements on both internal and external sides of the shells. Experimental results indicate that there are a series of potential fabrication techniques for bead production, but there is a clear tendency in the archaeological record to use a single technique for each shell species. There also seems to be a focus on using a fast technique rather than a slower one, which seems to produce higher quality
results. Finally, we also address the topic of the impact of bead production techniques on the evolution of bead design technology through all Upper Paleolithic record in SW Portugal. |
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Ivory debitage by fracture in the Aurignacian: experimental and archaeological
examples, di C. E. Heckel, S. Wolf, "Journal of Archaeological Science", Volume 42, February 2014, Pages 1–14
The recent focus on methods of osseous material transformation in the study of Upper Paleolithic technologies has shown that approaches to these materials vary between phases of the Upper Paleolithic. In the absence of the groove-and-splinter technique of blank extraction first widely documented in the Gravettian, production of ivory, bone, and antler blanks in the Aurignacian relied on processes of splitting and percussive fracture. The technological treatment of bone and antler in Aurignacian contexts has benefitted from renewed attention, but ivory processing and blank-production remains poorly understood in spite of the unique place that ivory occupies in many Aurignacian assemblages. In order to clarify the diagnostic features of ivory debitage, a series of experiments was conducted to produce ivory flakes under varying knapping conditions. These diagnostic features are products of the application of force to the complex internal morphology of proboscidean tusks, as explained in this article. Improved criteria for the identification of ivory flakes and manufacturing byproducts in the archaeological record are presented, and are illustrated with examples from two Aurignacian sites well known for ivory processing: Abri Castanet (Dordogne, France) and Hohle Fels Cave (Swabian Jura, Germany). A better understanding of ivory structure and improved identification of the products of ivory debitage in the Aurignacian will aid in the recovery and analysis of ivory artifacts and further efforts to reconstruct technological approaches to this complex material. |
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Neanderthal and Mammuthus interactions at EDAR Culebro 1 (Madrid,
Spain), di J. Yravedra et
alii, "Journal of Archaeological Science", Volume 42, February 2014, Pages 500–508
The association between elephants of the Mammuthus and Palaeoloxodon types and lithic tools is a recurrent phenomenon in Pleistocene sites. This has been a heavily debated topic. Thanks to the latest discoveries of cut and percussion marks in several archaeological sites, direct evidence of butchery practices generated by humans on elephants has been identified. Indirect evidence may also suggest a type of feeding activity. In this paper, the open-air site of EDAR Culebro 1 (Madrid, Spain) is presented, as well as a discussion about the possible interactions occurring between Neanderthals and Mammuthus cf. intermedius at this archaeological site. |
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Geoarchaeological and Bioarchaeological Studies at Mira, an Early Upper Paleolithic Site in the Lower Dnepr Valley, Ukraine,
di J. F. Hoffecker et alii, "Geoarchaeology", Volume 29, Issue 1, pages 61–77, January/February 2014
New geoarchaeological and bioarcheological research was undertaken at the open-air site of Mira, which is buried in deposits of the Second Terrace of the Dnepr River, roughly 15 km downstream from the city of Zaporozhye in Ukraine. Previous excavation of the site revealed two occupation layers dating to ∼32,000 cal BP. The lower layer (II/2) yielded bladelets similar to those of the early Gravettian, while the upper layer (I) contained traces of an artificial shelter and hundreds of bones and teeth of horse (Equus latipes). Mira represents the only firmly dated early Upper Paleolithic (EUP) site in the Dnepr Basin, and occupies a unique topographic setting for the EUP near the center of the broad floodplain of the Dnepr River. The site was visited during a period of floodplain stability, characterized by overbank deposition and weak soil formation under cool climate conditions. Mira was used as a long-term camp, but also was the locus of large-mammal carcass processing associated with a nearby kill of a group of horses (Layer I). |
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L'orso e i
Neandertal, di M.
Romandini, M. Peresani, S. Scaramucci e N. Nannini,
"Archeologia Viva", n. 163, gennaio-febbraio
2014, pp. 54-61
Ci troviamo nell'altopiano di Pradis, sulle Prealpi Carniche, provincia di Pordenone. Fra le molte cavità di natura carsica presenti nella zona c'è la Grotta del Rio Secco, uno dei rari siti del Paleolitico medio italiano (l'epoca che, fra circa 300 mila e 40 mila anni fa, vide il popolamento del continente europeo da parte dell'uomo di Neandertal) ad aver restituito tracce certe della caccia e del consumo dell'orso nella preistoria. Si tratta di un vasto riparo sulla riva sinistra del Rio Secco, a una ventina di metri d'altezza rispetto al corso attuale del torrente. Al centro del riparo si apre un'ampia cavità che al momento della scoperta era quasi totalmente ostruita da sedimenti e detriti. |
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Technical Note: Virtual reconstruction of KNM-ER 1813 Homo habilis
cranium, di S. Benazzi, G. Gruppioni, D. S. Strait, J. J. Hublin, "American Journal of Physical
Anthropology", Volume 153, Issue 1, pages 154–160, January 2014
A
very limiting factor for paleoanthropological studies is the poor state of preservation of the human fossil record, where fragmentation and deformation are considered normal. Although anatomical information can still be gathered from a distorted fossil, such specimens must typically be excluded from advanced morphological and morphometric analyses, thus reducing the fossil sample size and, ultimately, our knowledge of human evolution. In this contribution we provide the first digital reconstruction of the KNM-ER 1813 Homo habilis cranium. Based on state of-the-art three-dimensional digital modeling and geometric morphometric (GM) methods, the facial portion was aligned to the neurocranium, the overall distortion was removed, and the missing regions were restored. The reconstructed KNM-ER 1813 allows for an adjustment of the anthropometric measurements gathered on the original fossil. It is suitable for further quantitative studies, such as GM analyses focused on skull morphology or for finite element analysis to explore the mechanics of early Homo feeding behavior and diet. Am J Phys Anthropol 153:154–160, 2014. © 2013 Wiley Periodicals, Inc. |
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The fundamental hominin niche in late Pleistocene Central Asia: a preliminary refugium
model, di T. A. Beeton, M. M. Glantz, A. K. Trainer, S. S. Temirbekov, R. M. Reich, "Journal of
Biogeography",Volume 41, Issue 1, pages 95–110, January 2014
- free access -
We examine hominin presence in Central Asia during the late Pleistocene in order to identify the abiotic characteristics that best predict site distribution during interglacial and glacial periods. Our goal is to build a preliminary framework for climate-mediated hominin dispersals in this understudied part of the Old World.
We developed an ecological niche model using presence-only data to explain the spatial relationship of abiotic variables and hominin locations (n = 15) during glacial–interglacial transitions. The model was evaluated using the Cramér–von Mises goodness-of-fit statistic and empirical K-function.
Hominin locations were spatially aggregated during both glacial and interglacial periods. Of the abiotic variables analysed on a small scale (30-m resolution), only distance to water differed significantly between glacial and interglacial periods, although most locations were within 5 km of water. At a coarse scale (5-km resolution), hominin locations appear to have been constrained by low temperatures during glacial periods, but not during interglacials.
Hominin groups did not abandon Central Asia during colder periods. This suggests one of three possibly complementary scenarios: (1) late Pleistocene hominin groups had a more flexible behavioural repertoire than previously anticipated and were able to buffer climatic instability culturally; (2) our study area was not as hostile an environment as traditionally considered; and (3) the area examined here represents a refugium during late Pleistocene
glaciations. (...) |
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A series of Mousterian occupations in a new type of site: The Nesher Ramla karst
depression, Israel, di Y. Zaidner, A. Frumkin, N. Porat, A. Tsatskin, R. Yeshurun, L. Weissbrod, "Journal of Human
Evolution", Volume 66, January 2014, Pages 1–17
We report the discovery of a new type of hominin site in the Levant, inhabited during MIS 6–5. The site, found within a karst depression at Nesher Ramla, Israel, provides novel evidence for Middle Paleolithic lifeways in an environmental and depositional setting that is previously undocumented in the southern Levant. The carbonate bedrock in the area is characterized by surface depressions formed by gravitational sagging of the rock into underlying karst voids. In one such depression, an 8 m thick sequence comprising rich and well-preserved lithic and faunal assemblages, combustion features, hundreds of manuports and ochre was discovered. Here we focus on the geological and environmental setting and present optically stimulated luminescence (OSL) ages for the 8 m sequence, aiming to place the site within a firm chronological framework and determine its significance for a more complete reconstruction of cultural developments in the Levantine Middle Paleolithic. To that end, preliminary results of the lithic and faunal studies are also presented. |
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A reassessment of the presumed Neandertal remains from San Bernardino Cave,
Italy, di S. Benazzi, M. Peresani, S. Talamo, Q. Fu, M. A. Mannino, M. P. Richards, J. J.
Hublin, "Journal of Human Evolution", Volume 66, January 2014, Pages 89–94
In 1986–1987, three human remains were unearthed from macro-unit II of San Bernardino Cave (Berici Hills, Veneto, Italy), a deposit containing a late Mousterian lithic assemblage. The human remains (a distal phalanx, a lower right third molar and a lower right second deciduous incisor) do not show diagnostic morphological features that could be used to determine whether they were from Homo neanderthalensis or Homo sapiens. Despite being of small size, and thus more similar to recent H. sapiens, the specimens were attributed to Neandertals, primarily because they were found in Mousterian layers. We carried out a taxonomic reassessment of the lower right third molar (LRM3; San Bernardino 4) using digital morphometric analysis of the root, ancient DNA analysis, carbon and nitrogen isotope analyses, and direct accelerator mass spectrometry (AMS) radiocarbon dating of dentine collagen. Mitochondrial DNA analysis and root morphology show that the molar belongs to a modern human and not to a Neandertal. Carbon 14 (14C) dating of the molar attributes it to the end of the Middle Ages (1420–1480 cal AD, 2 sigma). Carbon and nitrogen isotope analyses suggest that the individual in question had a diet similar to that of Medieval Italians. These results show that the molar, as well as the other two human remains, belong to recent H. sapiens and were introduced in the Mousterian levels
post-depositionally. |
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Late Acheulean technology and cognition at
Boxgrove, UK, di D.
Stout, J. Apel, J. Commander, M. Roberts, "Journal of Archaeological
Science", Volume 41, January 2014, Pages 576–590
The Acheulean industrial complex combines technological variability with continuity on a scale unparalleled by more recent industries. Acheulean variability includes a widely recognized increase in biface refinement from the Early to Late Acheulean, however the specific timing and technological nature of this shift remain unclear as do its behavioral, cognitive, and evolutionary implications. To investigate this topic, we examined lithic collections from the early Middle Pleistocene Acheulean site of Boxgrove for evidence of the use of platform preparation as a biface thinning technique. To aid in the identification and assessment of platform preparation, Boxgrove artifacts were compared with experimental products of Inexperienced, Novice, and Expert stone knappers. Results demonstrate the technologically efficacious use of platform preparation among the Boxgrove toolmakers
~500 thousand years ago, providing the first direct evidence of this technique in the Acheulean. The use of platform preparation in bifacial thinning increases the complexity of toolmaking action sequences and has implications for understanding the neurocognitive substrates, social transmission, and spatiotemporal distribution of Late Acheulean
technology. |
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The genomic landscape of Neanderthal ancestry in present-day
humans, di S. Sankararaman, S. Mallick, M. Dannemann, K. Prüfer, J. Kelso, S. Pääbo, N. Patterson, D. Reich,
"Nature - Letter", 29 January 2014, doi:10.1038/nature12961
Genomic studies have shown that Neanderthals interbred with modern humans, and that non-Africans today are the products of this mixture1, 2. The antiquity of Neanderthal gene flow into modern humans means that genomic regions that derive from Neanderthals in any one human today are usually less than a hundred kilobases in size. However, Neanderthal haplotypes are also distinctive enough that several studies have been able to detect Neanderthal ancestry at specific loci1, 3, 4, 5, 6, 7, 8. We systematically infer Neanderthal haplotypes in the genomes of 1,004 present-day humans9. Regions that harbour a high frequency of Neanderthal alleles are enriched for genes affecting keratin filaments, suggesting that Neanderthal alleles may have helped modern humans to adapt to non-African environments. We identify multiple Neanderthal-derived alleles that confer risk for disease, suggesting that Neanderthal alleles continue to shape human biology. An unexpected finding is that regions with reduced Neanderthal ancestry are enriched in genes, implying selection to remove genetic material derived from Neanderthals. Genes that are more highly expressed in testes than in any other tissue are especially reduced in Neanderthal ancestry, and there is an approximately fivefold reduction of Neanderthal ancestry on the X chromosome, which is known from studies of diverse species to be especially dense in male hybrid sterility genes10, 11, 12. These results suggest that part of the explanation for genomic regions of reduced Neanderthal ancestry is Neanderthal alleles that caused decreased fertility in males when moved to a modern human genetic background.
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Modern human genomes reveal our inner
Neanderthal, di E.
Callaway, "Nature - News", 29 January 2014
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Resurrecting Surviving Neandertal Lineages from Modern Human
Genomes, di
B. Vernot, J. M. Akey, "Science", January 29 2014,
DOI: 10.1126/science.1245938
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I geni dei Neanderthal che sono in
noi, "Le Scienze", 29 gennaio 2014 |
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Separating endogenous ancient DNA from modern day contamination in a Siberian
Neandertal, di P. Skoglund, B. H. Northoff, M. V. Shunkov, A. P. Derevianko, S. Pääbo, J. Krause, M.
Jakobsson, "Proceedings of the National Academy of Sciences
- Early Edition", January 27, 2014, doi: 10.1073/pnas.1318934111
One of the main impediments for obtaining DNA sequences from ancient human skeletons is the presence of contaminating modern human DNA molecules in many fossil samples and laboratory reagents. However, DNA fragments isolated from ancient specimens show a characteristic DNA damage pattern caused by miscoding lesions that differs from present day DNA sequences. Here, we develop a framework for evaluating the likelihood of a sequence originating from a model with postmortem degradation—summarized in a postmortem degradation score—which allows the identification of DNA fragments that are unlikely to originate from present day sources. We apply this approach to a contaminated Neandertal specimen from Okladnikov Cave in Siberia to isolate its endogenous DNA from modern human contaminants and show that the reconstructed mitochondrial genome sequence is more closely related to the variation of Western Neandertals than what was discernible from previous analyses. Our method opens up the potential for genomic analysis of contaminated fossil material. |
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Ardipithecus ramidus and the evolution of the human cranial
base, di W. H. Kimbel, G.
Suwa, B. Asfaw, Y. Rak, T. D. White, "Proceedings of the National Academy of Sciences
- Early Edition", January 21, 2014,
vol. 111, no. 3, pp. 948-953
The early Pliocene African hominoid Ardipithecus ramidus was diagnosed as a having a unique phylogenetic relationship with the Australopithecus + Homo clade based on nonhoning canine teeth, a foreshortened cranial base, and postcranial characters related to facultative bipedality. However, pedal and pelvic traits indicating substantial arboreality have raised arguments that this taxon may instead be an example of parallel evolution of human-like traits among apes around the time of the chimpanzee–human split. Here we investigated the basicranial morphology of Ar. ramidus for additional clues to its phylogenetic position with reference to African apes, humans, and Australopithecus. Besides a relatively anterior foramen magnum, humans differ from apes in the lateral shift of the carotid foramina, mediolateral abbreviation of the lateral tympanic, and a shortened, trapezoidal basioccipital element. These traits reflect a relative broadening of the central basicranium, a derived condition associated with changes in tympanic shape and the extent of its contact with the petrous. Ar. ramidus shares with Australopithecus each of these human-like modifications. We used the preserved morphology of ARA-VP 1/500 to estimate the missing basicranial length, drawing on consistent proportional relationships in apes and humans. Ar. ramidus is confirmed to have a relatively short basicranium, as in Australopithecus and Homo. Reorganization of the central cranial base is among the earliest morphological markers of the Ardipithecus + Australopithecus + Homo clade. |
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Baboon Feeding Ecology Informs the Dietary Niche of Paranthropus
boisei, di G. A. Macho, January 08, 2014,
DOI: 10.1371/journal.pone.0084942 -
free access -
Hominins are generally considered eclectic omnivores like baboons, but recent isotope studies call into question the generalist status of some hominins. Paranthropus boisei and Australopithecus bahrelghazali derived 75%–80% of their tissues’ δ13C from C4 sources, i.e. mainly low-quality foods like grasses and sedges. Here I consider the energetics of P. boisei and the nutritional value of C4 foods, taking into account scaling issues between the volume of food consumed and body mass, and P. boisei’s food preference as inferred from dento-cranial morphology. Underlying the models are empirical data for Papio cynocephalus dietary ecology. Paranthropus boisei only needed to spend some 37%–42% of its daily feeding time (conservative estimate) on C4 sources to meet 80% of its daily requirements of calories, and all its requirements for protein. The energetic requirements of 2–4 times the basal metabolic rate (BMR) common to mammals could therefore have been met within a 6-hour feeding/foraging day. The findings highlight the high nutritional yield of many C4 foods eaten by baboons (and presumably hominins), explain the evolutionary success of P. boisei, and indicate that P. boisei was probably a generalist like other hominins. The diet proposed is consistent with the species’ derived morphology and unique microwear textures. Finally, the results highlight the importance of baboon/hominin hand in food acquisition and
preparation. (...) |
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Evidence supporting an intentional Neandertal burial at La
Chapelle-aux-Saints, di
W. Rendu et alii, "Proceedings of the National
Academy of Sciences", January 7, 2014. vol. 111, no. 1
The bouffia Bonneval at La Chapelle-aux-Saints is well known for the discovery of the first secure Neandertal burial in the early 20th century. However, the intentionality of the burial remains an issue of some debate. Here, we present the results of a 12-y fieldwork project, along with a taphonomic analysis of the human remains, designed to assess the funerary context of the La Chapelle-aux-Saints Neandertal. We have established the anthropogenic nature of the burial pit and underlined the taphonomic evidence of a rapid burial of the body. These multiple lines of evidence support the hypothesis of an intentional burial. Finally, the discovery of skeletal elements belonging to the original La Chapelle aux Saints 1 individual, two additional young individuals, and a second adult in the bouffia Bonneval highlights a more complex site-formation history than previously proposed. |
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Earliest evidence for caries and exploitation of starchy plant foods in Pleistocene
hunter-gatherers from Morocco, di
L. T. Humphrey et alii, "Proceedings of the National Academy of Sciences - Early Edition", January 6, 2014,
DOI: 10.1073/pnas.1318176111
Dental caries is an infectious disease that causes tooth decay. The high prevalence of dental caries in recent humans is attributed to more frequent consumption of plant foods rich in fermentable carbohydrates in food-producing societies. The transition from hunting and gathering to food production is associated with a change in the composition of the oral microbiota and broadly coincides with the estimated timing of a demographic expansion in Streptococcus mutans, a causative agent of human dental caries. Here we present evidence linking a high prevalence of caries to reliance on highly cariogenic wild plant foods in Pleistocene hunter-gatherers from North Africa, predating other high caries populations and the first signs of food production by several thousand years. Archaeological deposits at Grotte des Pigeons in Morocco document extensive evidence for human occupation during the Middle Stone Age and Later Stone Age (Iberomaurusian), and incorporate numerous human burials representing the earliest known cemetery in the Maghreb. Macrobotanical remains from occupational deposits dated between 15,000 and 13,700 cal B.P. provide evidence for systematic harvesting and processing of edible wild plants, including acorns and pine nuts. Analysis of oral pathology reveals an exceptionally high prevalence of caries (51.2% of teeth in adult dentitions), comparable to modern industrialized populations with a diet high in refined sugars and processed cereals. We infer that increased reliance on wild plants rich in fermentable carbohydrates and changes in food processing caused an early shift toward a disease-associated oral microbiota in this
population.
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Anche i cacciatori-raccoglitori del Paleolitico soffrivano di
carie, "Le Scienze", 09 gennaio 2014 |
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Ancient European genomes reveal jumbled
ancestry, di E. Callaway, "Nature news", 02 January 2014
Newly released genome sequences from almost a dozen early human inhabitants of Europe suggest that the continent was once a melting pot in which brown-eyed farmers encountered blue-eyed
hunter-gatherers. Present-day Europeans, the latest work shows, trace their ancestry to three groups in various combinations: hunter-gatherers, some of them blue-eyed, who arrived from Africa more than 40,000 years ago; Middle Eastern farmers who migrated west much more recently; and a novel, more mysterious population whose range probably spanned northern Europe and Siberia.
That conclusion comes from the genomes of 8,000-year-old hunter-gatherers — one man from Luxembourg and seven individuals from Sweden — as well as the genome of a 7,500-year-old woman from Germany. The analysis, led by Johannes Krause of the University of Tübingen,
Germany, and David Reich of Harvard Medical School in Boston, Massachusetts, was posted on the biology preprint website bioRxiv.org on 23 December 20131. The results have not yet been published in a peer-reviewed journal.
(...) |
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The complete genome sequence of a Neanderthal from the Altai
Mountains, di K. Prüfer
et alii, "Nature" 505, 43–49 (02 January 2014)
We present a high-quality genome sequence of a Neanderthal woman from Siberia. We show that her parents were related at the level of half-siblings and that mating among close relatives was common among her recent ancestors. We also sequenced the genome of a Neanderthal from the Caucasus to low coverage. An analysis of the relationships and population history of available archaic genomes and 25 present-day human genomes shows that several gene flow events occurred among Neanderthals, Denisovans and early modern humans, possibly including gene flow into Denisovans from an unknown archaic group. Thus, interbreeding, albeit of low magnitude, occurred among many hominin groups in the Late Pleistocene. In addition, the high-quality Neanderthal genome allows us to establish a definitive list of substitutions that became fixed in modern humans after their separation from the ancestors of Neanderthals and Denisovans. |
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Index
di antiqui |
Sommario
bacheca |
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