期刊
SCIENCE
卷 340, 期 6129, 页码 -出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1233477
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资金
- Gauteng Provincial Government
- South African Department of Science and Technology
- African Origins Platform (AOP)
- South African National Research Foundation (NRF)
- Evolutionary Studies Institute (University of the Witwatersrand)
- University of the Witwatersrand's Vice Chancellor's Discretionary Fund
- National Geographic Society
- Palaeontological Scientific Trust
- Andrew W. Mellon Foundation
- Ford Foundation
- U.S. Diplomatic Mission to South Africa
- French Embassy of South Africa
- Claude Leon Foundation
- Strategic Planning and Resource Allocation Committee of the University of the Witwatersrand
- A. H. Schultz Foundation
- Duke University
- Ray A. Rothrock '77 Fellowship
- Texas AM University
- Oppenheimer and Ackerman families
- University of the Witwatersrand's Schools of Geosciences and Anatomical Sciences
- Bernard Price Institute for Palaeontology
The evolution of the human upper limb involved a change in function from its use for both locomotion and prehension (as in apes) to a predominantly prehensile and manipulative role. Well-preserved forelimb remains of 1.98-million-year-old Australopithecus sediba from Malapa, South Africa, contribute to our understanding of this evolutionary transition. Whereas other aspects of their postcranial anatomy evince mosaic combinations of primitive (australopith-like) and derived (Homo-like) features, the upper limbs (excluding the hand and wrist) of the Malapa hominins are predominantly primitive and suggest the retention of substantial climbing and suspensory ability. The use of the forelimb primarily for prehension and manipulation appears to arise later, likely with the emergence of Homo erectus.
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