Khoratpithecus piriyai, a Late Miocene hominoid of Thailand

American Journal of Physical Anthropology
Yaowalak ChaimaneeJean-Jacques Jaeger

Abstract

A Khoratpithecus piriyai lower jaw corresponds to a well-preserved Late Miocene hominoid fossil from northeastern Thailand. Its morphology and internal structure, using a microcomputed tomography scan, are described and compared to those of other known Miocene hominoids. It originated from fluviatile sand and gravel deposits of a large river, and was associated with many fossil tree trunks, wood fragments, and large vertebrate remains. A biochronological analysis by using associated mammal fauna gives an estimated geological age between 9-6 Ma. The flora indicates the occurrence of a riverine tropical forest and wide areas of grassland. K. piriyai displays many original characters, such as the great breadth of its anterior dentition, suggesting large incisors, large lower M3, a canine with a flat lingual wall, and symphysis structure. Several of its morphological derived characters are shared with the orangutan, indicating sister-group relationship with that extant ape. This relationship is additionally strongly supported by the absence of anterior digastric muscle scars. These shared derived characters are not present in Sivapithecus, Ankarapithecus, and Lufengpithecus, which are therefore considered more distant relatives to ...Continue Reading

References

Jul 11, 1991·Nature·J Kelley, Q H Xu
Apr 1, 1995·American Journal of Physical Anthropology·J Kelley
Aug 1, 1993·American Journal of Physical Anthropology·D J Daegling
Mar 1, 1993·Proceedings of the National Academy of Sciences of the United States of America·M L McCrossin, B R Benefit
Feb 1, 1996·Molecular Phylogenetics and Evolution·D Pilbeam
Apr 17, 1998·American Journal of Physical Anthropology·D R Begun, E Güleç
Jul 18, 2000·Journal of Human Evolution·D J Daegling, W L Jungers
Mar 7, 2003·Nature·Yaowalak ChaimaneeJean-Jacques Jaeger
Jan 30, 2004·Nature·Yaowalak ChaimaneeJean-Jacques Jaeger
Jan 1, 1989·American Journal of Primatology·Jay Kelley, Dennis Etler
Jan 1, 1983·American Journal of Primatology·Wu Rukang, Charles E Oxnard

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Citations

Apr 19, 2012·Proceedings of the National Academy of Sciences of the United States of America·Jay Kelley, Feng Gao
Mar 26, 2010·Proceedings. Biological Sciences·D M AlbaS Moyà-Solà
May 3, 2011·PloS One·Jean-Jacques JaegerYaowalak Chaimanee
Dec 23, 2011·Journal of Human Evolution·Edouard-Georges EmonetJean-Jacques Jaeger
Dec 4, 2008·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Cyril CharlesLaurent Viriot
Jan 25, 2012·American Journal of Physical Anthropology·Tanya M SmithJohn P Zermeno
May 4, 2012·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·NoÉmie HamonJean-Jacques Jaeger
Jun 21, 2014·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Edouard-Georges Emonet, Ottmar Kullmer
Nov 19, 2013·American Journal of Physical Anthropology·Edouard-Georges EmonetMichel Brunet
Jan 21, 2017·American Journal of Physical Anthropology·Yingqi Zhang, Terry Harrison
May 16, 2007·American Journal of Physical Anthropology·Anthony J OlejniczakJean-Jacques Hublin
Aug 27, 2019·Journal of Human Evolution·Yaowalak ChaimaneeJean-Jacques Jaeger

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