Publications [#240098] of Steven E. Churchill

Papers Published

1. Pickering, R; Dirks, PHGM; Jinnah, Z; de Ruiter, DJ; Churchil, SE; Herries, AIR; Woodhead, JD; Hellstrom, JC; Berger, LR, Australopithecus sediba at 1.977 Ma and implications for the origins of the genus Homo., Science (New York, N.Y.), vol. 333 no. 6048 (September, 2011), pp. 1421-1423, ISSN 0036-8075 [Gateway.cgi], [doi]
   (last updated on 2024/04/24)

   Abstract:
   Newly exposed cave sediments at the Malapa site include a flowstone layer capping the sedimentary unit containing the Australopithecus sediba fossils. Uranium-lead dating of the flowstone, combined with paleomagnetic and stratigraphic analysis of the flowstone and underlying sediments, provides a tightly constrained date of 1.977 ± 0.002 million years ago (Ma) for these fossils. This refined dating suggests that Au. sediba from Malapa predates the earliest uncontested evidence for Homo in Africa.