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Science 24 June 1994:
Vol. 264. no. 5167, pp. 1907 - 1910
DOI: 10.1126/science.8009220
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Articles

Science, Vol 264, Issue 5167, 1907-1910
Copyright © 1994 by American Association for the Advancement of Science

articles

African Homo erectus: old radiometric ages and young Oldowan assemblages in the Middle Awash Valley, Ethiopia

JD Clark, J de Heinzelin, KD Schick, WK Hart, TD White, G WoldeGabriel, RC Walter, G Suwa, B Asfaw, E Vrba, and al. et

Department of Anthropology, University of California, Berkeley 94720.

Fossils and artifacts recovered from the middle Awash Valley of Ethiopia's Afar depression sample the Middle Pleistocene transition from Homo erectus to Homo sapiens. Ar/Ar ages, biostratigraphy, and tephrachronology from this area indicate that the Pleistocene Bodo hominid cranium and newer specimens are approximately 0.6 million years old. Only Oldowan chopper and flake assemblages are present in the lower stratigraphic units, but Acheulean bifacial artifacts are consistently prevalent and widespread in directly overlying deposits. This technological transition is related to a shift in sedimentary regime, supporting the hypothesis that Middle Pleistocene Oldowan assemblages represent a behavioral facies of the Acheulean industrial complex.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Cross-Sectional Dating of Novel Haplotypes of HERV-K 113 and HERV-K 115 Indicate These Proviruses Originated in Africa before Homo sapiens.
A. R. Jha, S. K. Pillai, V. A. York, E. R. Sharp, E. C. Storm, D. J. Wachter, J. N. Martin, S. G. Deeks, M. G. Rosenberg, D. F. Nixon, et al. (2009)
Mol. Biol. Evol. 26, 2617-2626
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Out of Africa: Modern Human Origins Special Feature: Middle and later Pleistocene hominins in Africa and Southwest Asia.
G. P. Rightmire (2009)
PNAS 106, 16046-16050
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Large mammal turnover in Africa and the Levant between 1.0 and 0.5 Ma.
H. J. O'Regan, L. C. Bishop, A. Lamb, S. Elton, and A. Turner (2005)
Geological Society, London, Special Publications 247, 231-249
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Paleoenvironments of the earliest stone toolmakers, Gona, Ethiopia.
J. Quade, N. Levin, S. Semaw, D. Stout, P. Renne, M. Rogers, and S. Simpson (2004)
Geological Society of America Bulletin 116, 1529-1544
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Faunal turnover rates and mammalian biodiversity of the late Pliocene and Pleistocene of eastern Africa.
(2001)
Paleobiology 27, 500-511
Paleolithic Technology and Human Evolution.
S. H. Ambrose (2001)
Science 291, 1748-1753
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Thermal ionization mass spectrometry U-series dating of a hominid site near Nanjing, China.
J.-x. Zhao, K. Hu, K. D. Collerson, and H.-k. Xu (2001)
Geology 29, 27-30
   Abstract »    Full Text »    PDF »
Environment and Behavior of 2.5-Million-Year-Old Bouri Hominids.
J. d. Heinzelin, J. D. Clark, T. White, W. Hart, P. Renne, G. WoldeGabriel, Y. Beyene, and E. Vrba (1999)
Science 284, 625-629
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