Geological Setting and Age of Australopithecus sediba from Southern Africa
作者： Paul HGM Dirks , Job M Kibii , Brian F Kuhn , Christine Steininger , Steven E Churchill
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摘要: We describe the geological, geochronological, geomorphological, and faunal context of Malapa site fossils Australopithecus sediba. The hominins occur with a macrofauna assemblage that existed in Africa between 2.36 1.50 million years ago (Ma). are encased water-laid, clastic sediments were deposited along lower parts what is now deeply eroded cave system, immediately above flowstone layer U-Pb date 2.026 ± 0.021 Ma. has reversed paleomagnetic signature overlying hominin-bearing normal polarity, indicating deposition during 1.95- to 1.78-Ma Olduvai Subchron. two hominin specimens buried together single debris flow lithified soon after phreatic environment inaccessible scavengers.
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