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Volumn 284, Issue 5414, 1999, Pages 625-629

Environment and behavior of 2.5-million-year-old Bouri hominids

Author keywords

[No Author keywords available]

Indexed keywords

BEHAVIORAL RESPONSE; LITHIC FRAGMENT; PALEOENVIRONMENT; PLIOCENE;

EID: 0033597434     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.284.5414.625     Document Type: Article
Times cited : (408)

References (22)
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    • The age of this standard is now known to be slightly older [28.02 Ma (17)], but comparison with previous data (for example, from the Gona) is facilitated by retaining the standard age of 27.84 Ma
    • The age of this standard is now known to be slightly older [28.02 Ma (17)], but comparison with previous data (for example, from the Gona) is facilitated by retaining the standard age of 27.84 Ma. A table of the Ar isotopic data is available at www.sciencemag.org/ feature/data/991110.shl.
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    • note
    • 39Ar age with the age of 2.6 Ma (8) for the Gauss/Matuyama boundary more properly requires the use of the older age of the standard (28.02 Ma) and Indicates an ∼10% greater sedimentation rate.
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    • note
    • The Middle Awash paleoanthropological project is multinational (13 countries), with interdisciplinary research codirected by B. Asfaw, Y. Beyene, J. D. Clark, T. D. White, and G. WoldeGabriel. The research reported here was supported by NSF, the Ann and Gordon Getty Foundation (Berkeley Geochronology Center), and the Institute of Geophysics and Planetary Physics of the University of California and the Earth Environmental Sciences Division at Los Alamos National Laboratory. Additional contributions were made by the Graduate School, the Office for Advancement of Scholarship and Teaching, and the Department of Geology at Miami University. We thank the Ethiopian Mapping Agency and the NASA Goddard Space Flight Center for imagery. We thank H. Gilbert for fieldwork and for work on the illustrations. D. Brill made the photographs and G. Richards and B. Plowman at the University of Pacific made the scanning electron microscope (SEM) image. T. Larson provided invaluable field and laboratory geology support. A. Defleur assisted in field survey and excavations at BOU-VP-11. We thank H. Saegusa for proboscidean identifications, D. DeGusta for primate identifications and excavations at BOU-VP-12/1, and F. C. Howell for carnivore identifications. We thank O. Lovejoy, G. Suwa, and B. Asfaw for helpful comments. We thank the Ethiopian Ministry of Information and Culture, the Centre for Research and Conservation of the Cultural Heritage, and the National Museum of Ethiopia. We thank the Afar Regional Government and the Afar people of the Middle Awash for permission and support We thank the many individuals who contributed to the camp, transport, survey, excavation, and laboratory work that stands behind the results presented.


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