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The Anthropoid Status of a Primate from the Late Middle Eocene Pondaung Formation (Central Myanmar): Tarsal Evidence

Marivaux, Laurent ; Chaimanee, Yaowalak ; Ducrocq, Stéphane ; Marandat, Bernard ; Sudre, Jean ; Soe, Aung Naing ; Tun, Soe Thura ; Htoon, Wanna ; Jaeger, Jean-Jacques

Proceedings of the National Academy of Sciences - PNAS, 2003-11, Vol.100 (23), p.13173-13178 [Periódico revisado por pares]

United States: National Academy of Sciences

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  • Título:
    The Anthropoid Status of a Primate from the Late Middle Eocene Pondaung Formation (Central Myanmar): Tarsal Evidence
  • Autor: Marivaux, Laurent ; Chaimanee, Yaowalak ; Ducrocq, Stéphane ; Marandat, Bernard ; Sudre, Jean ; Soe, Aung Naing ; Tun, Soe Thura ; Htoon, Wanna ; Jaeger, Jean-Jacques
  • Assuntos: Analysis ; Animal anatomy ; Animals ; Anthropology ; Biodiversity and Ecology ; Biological Sciences ; Bones ; Environmental Sciences ; Flexors ; Fossils ; Haplorhini ; Head ; Linear discriminant analysis ; Myanmar ; Parsimony ; Phylogeny ; Primates ; Tarsal Bones ; Tarsus ; Taxa ; We they distinction
  • É parte de: Proceedings of the National Academy of Sciences - PNAS, 2003-11, Vol.100 (23), p.13173-13178
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
    PMCID: PMC263736
    Abbreviations: NMMP, National Museum of Myanmar, Primates; TL, talar length; NL, talar neck length; TRL, trochlear length; MTRW, midtrochlear width; TW, talar width; HT, lateral body height; HW, talar head width; HHT, talar head height; LDA, linear discriminant analysis; PA, parsimony analysis; SH, Shanghuang.
    This paper was submitted directly (Track II) to the PNAS office.
    Edited by Elwyn L. Simons, Duke University Primate Center, Durham, NC
    To whom correspondence should be addressed. E-mail: marivaux@isem.univ-montp2.fr.
  • Descrição: Primate dental and postcranial remains from the Eocene Pondaung Formation (Myanmar) have been the subject of considerable confusion since their initial discoveries, and their anthropoid status has been widely debated. We report here a well preserved primate talus discovered in the Segyauk locality near Mogaung that displays derived anatomical features typical of haplorhines, notably anthropoids, and lacks strepsirhine synapomorphies. Linear discriminant and parsimony analyses indicate that the talus from Myanmar is more similar structurally to those of living and extinct anthropoids than to those of adapiforms, and its overall osteological characteristics further point to arboreal quadrupedalism. Regressions of talar dimensions versus body mass in living primates indicate that this foot bone might have belonged to Amphipithecus. This evidence supports hypotheses favoring anthropoid affinities for the large-bodied primates from Pondaung and runs contrary to the hypothesis that Pondaungia and Amphipithecus are strepsirhine adapiforms.
  • Editor: United States: National Academy of Sciences
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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