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Australopithecus sediba at 1.977 Ma and Implications for the Origins of the Genus Homo

机译：1.977 Ma的南方古猿（Australopithecus sediba）及其对人属起源的启示

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摘要

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.
机译：马拉帕遗址上新暴露的洞穴沉积物包括一块流石层，覆盖了包含古猿化石的化石的沉积单元。浮石的铀铅定年，再加上浮石和下层沉积物的古地磁和地层分析，为这些化石提供了1.977 + 0.002百万年前（Ma）的严格约束日期。这个精致的约会暗示了金。来自马拉帕的sediba早于非洲人类的最早无争议证据。

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  • 来源
    《Science》 |2011年第6048期|p.1421-1423|共3页
  • 作者

    Robyn Pickering; Paul H. G. M. Dirks; Zubair Jinnah; Darryl J. de Ruiter; Steven E. Churchil; Andy I. R. Herries; Jon D. Woodhead; John C. Hellstrom; Lee R. Berger;

  • 作者单位

    School of Earth Sciences, University of Melbourne, Victoria,3010, Australia,Institute for Human Evolution, Uni-versity of the Witwatersrand, Johannesburg, Wits 2050, South Africa,;

    rnSchool of Earth and Environmental Sciences,James Cook University, Queensland 4811, Australia,School of Geosciences, University of the Witwatersrand, Johannesburg,Wits 2050, South Africa, ,Institute for Human Evolution, Uni-versity of the Witwatersrand, Johannesburg, Wits 2050, South Africa,;

    rnSchool of Geosciences, University of the Witwatersrand, Johannesburg,Wits 2050, South Africa,;

    rnDepartment of Anthropology, Texas A&M University,College Station, TX 77843, USA ,Institute for Human Evolution, Uni-versity of the Witwatersrand, Johannesburg, Wits 2050, South Africa,;

    rnDepartment of Evolutionary Anthropology, Duke University, Durham, NC 27708, USA ,Institute for Human Evolution, Uni-versity of the Witwatersrand, Johannesburg, Wits 2050, South Africa,;

    rnAus-tralian Archaeomagnetism Laboratory, Archaeology Program,School of Historical and European Studies, Faculty of Human-ities and Social Sciences, La Trobe University, Melbourne,Victoria, Australia;

    rnSchool of Earth Sciences, University of Melbourne, Victoria,3010, Australia;

    rnSchool of Earth Sciences, University of Melbourne, Victoria,3010, Australia;

    rnInstitute for Human Evolution, Uni-versity of the Witwatersrand, Johannesburg, Wits 2050, South Africa,School of Geosciences, University of the Witwatersrand, Johannesburg,Wits 2050, South Africa;

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  • 入库时间 2022-08-18 02:54:08

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