Oligocene sivaladapid primate from the Bugti Hills (Balochistan, Pakistan) bridges the gap between Eocene and Miocene adapiform communities in Southern Asia

Journal of Human Evolution
Laurent MarivauxJean-Jacques Jaeger

Abstract

A new species of Guangxilemur (Sivaladapidae, Adapiformes) is described from the early Oligocene Chitarwata Formation (Bugti Member) of the Bugti Hills, Sulaiman geological Province, Balochistan, Pakistan. Guangxilemur singsilai n. sp. provides further diagnostic morphological characters from its newly described upper and lower dentitions, confirming its intermediate phylogenetic position between Eocene and Miocene Asian sivaladapid adapiforms. G. singsilai possesses moderately developed shearing and puncturing molar features and maintains lingual cusps on upper molars as in Eocene hoanghoniines; in contrast, it possesses a typical molariform P(4) as in Miocene sivaladapines. The important paleogeographic changes that have affected South Asia during the Tertiary (related to the collision between the Indian and Eurasian Plates) have played a critical role in reforming circulation and climatic differentiation. The presence in Pakistan of an unique and well-diversified Oligocene primate fauna, clearly demonstrates that South Asia maintained favourable environmental conditions during the middle Caenozoic global climatic deterioration that coincides with drastic changes in faunal structure on the whole Holarctic Province, including ...Continue Reading

References

Mar 1, 1974·American Journal of Physical Anthropology·R F Kay, K M Hiiemae
Oct 20, 2001·Science·L MarivauxJ J Jaeger

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Citations

Oct 4, 2013·Proceedings. Biological Sciences·Yaowalak ChaimaneeJean-Jacques Jaeger
Sep 15, 2007·Folia primatologica; international journal of primatology·Erik R Seiffert
Jun 7, 2005·Proceedings of the National Academy of Sciences of the United States of America·Laurent MarivauxJean-Loup Welcomme
Mar 24, 2009·Journal of Human Evolution·Kenneth D RoseThierry Smith
Nov 21, 2007·Journal of Human Evolution·Yaowalak ChaimaneeJean-Jacques Jaeger
Jun 5, 2008·American Journal of Physical Anthropology·Laurent MarivauxAung Aung Kyaw
Dec 26, 2016·Journal of Human Evolution·Christopher C GilbertRajeev Patnaik
Dec 22, 2005·American Journal of Physical Anthropology·Ellen R MillerRobert D Martin

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