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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Late Middle Eocene primate from Myanmar and the initial anthropoid colonization of Africa
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Late Middle Eocene primate from Myanmar and the initial anthropoid colonization of Africa

机译：来自缅甸的中始新世晚期灵长类动物和非洲最初的类人猿定居

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摘要

Reconstructing the origin and early evolutionary history of anthropoid primates (monkeys, apes, and humans) is a current focus of paleoprimatology. Although earlier hypotheses frequently supported an African origin for anthropoids, recent discoveries of older and phylogenetically more basal fossils in China and Myanmar indicate that the group originated in Asia. Given the Oligocene-Recent history of African anthropoids, the colonization of Africa by early anthropoids hailing from Asia was a decisive event in primate evolution. However, the fossil record has so far failed to constrain the nature and timing of this pivotal event. Here we describe a fossil primate from the late middle Eocene Pondaung Formation of Myanmar, Afrasia djijidae gen. et sp. nov., that is remarkably similar to, yet dentally more primitive than, the roughly contemporaneous North African anthropoid Afrotarsius. Phylogenetic analysis suggests that Afrasia and Afro-tarsius are sister taxa within a basal anthropoid clade designated as the infraorder Eosimiiformes. Current knowledge of eosimii-form relationships and their distribution through space and time suggests that members of this clade dispersed from Asia to Africa sometime during the middle Eocene, shortly before their first appearance in the African fossil record. Crown anthropoids and their nearest fossil relatives do not appear to be specially related to Afrotarsius, suggesting one or more additional episodes of dispersal from Asia to Africa. Hystricognathous rodents, anthraco-theres, and possibly other Asian mammal groups seem to have colonized Africa at roughly the same time or shortly after anthropoids gained their first toehold there.
机译：重建类人灵长类动物（猴子，猿和人）的起源和早期进化史是古原始动物学的当前重点。尽管较早的假设经常支持类人猿起源于非洲，但最近在中国和缅甸发现的较古老且系统发育的基础化石表明，该群体起源于亚洲。鉴于非洲类人猿的渐新世历史，非洲早期由人类类人猿招募而来的非洲殖民化是灵长类动物进化的决定性事件。然而，迄今为止，化石记录未能约束这一关键事件的性质和时机。在这里，我们描述了来自缅甸Afrasia djijidae gen的中新世Pondaung中晚期晚期的化石灵长类动物。等。十一月，这与大约同时代的北非类人猿Afrotarsius非常相似，但在牙科上却更为原始。系统发育分析表明，非洲黑嘴猴和非洲象鼻猴是基底类人猿进化支中的姊妹类群，被指定为亚基嗜酸性亚纲。目前对eosimii形式的关系及其在空间和时间上的分布的了解表明，该进化枝的成员在始于非洲化石记录之前不久的中新世中期的某个时间从亚洲散布到非洲。冠状类人动物及其最近的化石亲属似乎与非洲菊科动物没有特别的关系，表明从亚洲向非洲扩散的一个或多个其他事件。下颌啮齿类动物，炭疽羚和其他可能的亚洲哺乳动物群体似乎在人类在此同时或不久就在非洲殖民了。

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    Yaowalak Chaimanee; Olivier Chavasseau; K. Christopher Beard; Aung Aung Kyaw; Aung Naing Soe; Chit Sein; Vincent Lazzari; Laurent Marivaux; Bernard Marandat; Myat Swe; Mana Rugbumrung; Thit Lwin; Xavier Valentin; Zin-Maung-Maung-Thein; Jean-Jacques Jaeger;

  • 作者单位

    Institut International de Paleoprimatologie et de Paleontologie Humaine, Evolution et Paleoenvironnements, Unite Mixte de Recherche (UMR) Centre National de la Recherche Scientifique (CNRS) 7262, Universite de Poitiers, 86022 Poitiers Cedex, France;

    Institut International de Paleoprimatologie et de Paleontologie Humaine, Evolution et Paleoenvironnements, Unite Mixte de Recherche (UMR) Centre National de la Recherche Scientifique (CNRS) 7262, Universite de Poitiers, 86022 Poitiers Cedex, France;

    Section of Vertebrate Paleontology, Carnegie Museum of Natural History, Pittsburgh, PA 15213;

    Department of Archaeology, Ministry of Culture, Mandalay, Myanmar;

    Department of Geology, Defence Services Academy, Pyin Oo Lwin, Myanmar;

    Department of Geology, Hinthada University, Hinthada, Myanmar;

    Institut International de Paleoprimatologie et de Paleontologie Humaine, Evolution et Paleoenvironnements, Unite Mixte de Recherche (UMR) Centre National de la Recherche Scientifique (CNRS) 7262, Universite de Poitiers, 86022 Poitiers Cedex, France;

    Institut des Sciences de Involution, UMR CNRS 5554, Universite Montpellier II, 34095 Montpellier, France;

    Institut des Sciences de Involution, UMR CNRS 5554, Universite Montpellier II, 34095 Montpellier, France;

    Department of Archaeology, Ministry of Culture, Mandalay, Myanmar;

    Paleontology Section, Department of Mineral Resources, Bangkok 10400, Thailand;

    Department of Geology, Pyay University, Pyay, Myanmar;

    Institut International de Paleoprimatologie et de Paleontologie Humaine, Evolution et Paleoenvironnements, Unite Mixte de Recherche (UMR) Centre National de la Recherche Scientifique (CNRS) 7262, Universite de Poitiers, 86022 Poitiers Cedex, France;

    Department of Geology, University of Mandalay, Mandalay, Myanmar;

    Institut International de Paleoprimatologie et de Paleontologie Humaine, Evolution et Paleoenvironnements, Unite Mixte de Recherche (UMR) Centre National de la Recherche Scientifique (CNRS) 7262, Universite de Poitiers, 86022 Poitiers Cedex, France;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    afrotarsiidae; eosimiidae; phylogeny; paleobiogeography;

    机译：si科嗜酸性科系统发育古生物学;

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