期刊
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
卷 107, 期 22, 页码 10002-10007出版社
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1002181107
关键词
Oldowan; Paleolithic; stone tools; paleomagnetism
资金
- Liverpool University Geomagnetism Lab
- National Museums of Kenya
- Ministry of Education, Science and Technology of the Republic of Kenya [MOEST 13/001/31C 216]
- National Science Foundation-International Research Fellowship [0602021]
- Rutgers University (Center for Human Evolutionary Studies)
- University of Cape Town
- Palaeontological Scientific Trust
- University of New South Wales Faculty of Medicine
- Australian Research Council [DP0877603]
- Office Of The Director
- Office Of Internatl Science &Engineering [0602021] Funding Source: National Science Foundation
The manufacture of stone tools and their use to access animal tissues by Pliocene hominins marks the origin of a key adaptation in human evolutionary history. Here we report an in situ archaeological assemblage from the Koobi Fora Formation in northern Kenya that provides a unique combination of faunal remains, some with direct evidence of butchery, and Oldowan artifacts, which are well dated to 1.95 Ma. This site provides the oldest in situ evidence that hominins, predating Homo erectus, enjoyed access to carcasses of terrestrial and aquatic animals that they butchered in a well-watered habitat. It also provides the earliest definitive evidence of the incorporation into the hominin diet of various aquatic animals including turtles, crocodiles, and fish, which are rich sources of specific nutrients needed in human brain growth. The evidence here shows that these critical brain-growth compounds were part of the diets of hominins before the appearance of Homo ergaster/erectus and could have played an important role in the evolution of larger brains in the early history of our lineage.
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