Hominin track assemblages from Okote Member deposits near Ileret, Kenya, and their implications for understanding fossil hominin paleobiology at 1.5 Ma.

Autor: Hatala KG; Department of Biology, Chatham University, Pittsburgh, PA 15232, USA; Center for the Advanced Study of Human Paleobiology, Department of Anthropology, The George Washington University, Washington, DC 20052, USA. Electronic address: kevin.g.hatala@gmail.com., Roach NT; Department of Human Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA; Division of Anthropology, American Museum of Natural History, New York, NY 10024, USA., Ostrofsky KR; Center for the Advanced Study of Human Paleobiology, Department of Anthropology, The George Washington University, Washington, DC 20052, USA., Wunderlich RE; Department of Biology, James Madison University, Harrisonburg, VA 22807, USA., Dingwall HL; Department of Human Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA., Villmoare BA; Department of Anthropology, University of Nevada Las Vegas, Las Vegas, NV 89154, USA., Green DJ; Department of Anatomy, Midwestern University, Downers Grove, IL 60515, USA., Braun DR; Center for the Advanced Study of Human Paleobiology, Department of Anthropology, The George Washington University, Washington, DC 20052, USA., Harris JWK; Department of Anthropology, Rutgers University, New Brunswick, NJ 08901, USA., Behrensmeyer AK; Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA., Richmond BG; Division of Anthropology, American Museum of Natural History, New York, NY 10024, USA; Humboldt Foundation Fellow at Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig D-04103, Germany.
Jazyk: angličtina
Zdroj: Journal of human evolution [J Hum Evol] 2017 Nov; Vol. 112, pp. 93-104. Date of Electronic Publication: 2017 Sep 13.
DOI: 10.1016/j.jhevol.2017.08.013
Abstrakt: Tracks can provide unique, direct records of behaviors of fossil organisms moving across their landscapes millions of years ago. While track discoveries have been rare in the human fossil record, over the last decade our team has uncovered multiple sediment surfaces within the Okote Member of the Koobi Fora Formation near Ileret, Kenya that contain large assemblages of ∼1.5 Ma fossil hominin tracks. Here, we provide detailed information on the context and nature of each of these discoveries, and we outline the specific data that are preserved on the Ileret hominin track surfaces. We analyze previously unpublished data to refine and expand upon earlier hypotheses regarding implications for hominin anatomy and social behavior. While each of the track surfaces discovered at Ileret preserves a different amount of data that must be handled in particular ways, general patterns are evident. Overall, the analyses presented here support earlier interpretations of the ∼1.5 Ma Ileret track assemblages, providing further evidence of large, human-like body sizes and possibly evidence of a group composition that could support the emergence of certain human-like patterns of social behavior. These data, used in concert with other forms of paleontological and archaeological evidence that are deposited on different temporal scales, offer unique windows through which we can broaden our understanding of the paleobiology of hominins living in East Africa at ∼1.5 Ma.
(Copyright © 2017 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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