期刊
SCIENCE
卷 333, 期 6048, 页码 1407-1411出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1202521
关键词
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资金
- South African Department of Science and Technology
- South African National Research Foundation
- Institute for Human Evolution, University of the Witwatersrand
- University of the Witwatersrand
- National Geographic Society
- Palaeontological Scientific Trust
- Andrew W. Mellon Foundation
- Ford Foundation
- U.S. Diplomatic Mission to South Africa
- French Embassy of South Africa
- A. H. Schultz Foundation
- Texas AM University
- Oppenheimer and Ackerman families
- R. Branson
- University of the Witwatersrand's Schools of Geosciences and Anatomical Sciences
- Bernard Price Institute for Palaeontology
The fossil record of the hominin pelvis reflects important evolutionary changes in locomotion and parturition. The partial pelves of two individuals of Australopithecus sediba were reconstructed from previously reported finds and new material. These remains share some features with australopiths, such as large biacetabular diameter, small sacral and coxal joints, and long pubic rami. The specimens also share derived features with Homo, including more vertically oriented and sigmoid-shaped iliac blades, greater robusticity of the iliac body, sinusoidal anterior iliac borders, shortened ischia, and more superiorly oriented pubic rami. These derived features appear in a species with a small adult brain size, suggesting that the birthing of larger-brained babies was not driving the evolution of the pelvis at this time.
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