Abnormal Fossil Upper Molar of Pongo from Thailand: Quaternary Climatic Changes in Southeast Asia as a Possible Cause
Authors: Tougard C.; Ducrocq S.
Source: International Journal of Primatology, Volume 20, Number 4, August 1999 , pp. 599-607(9)
We interpret an unusual left M3 attributed to Pongo from the Late Middle Pleistocene of Thailand to be an abnormal tooth rather than a supernumerary molar. Its peculiar morphology cannot be related to classical known causes that affect the dental germ: Gemination, schizodontia, synodontia. The ontogenic mechanism that might have led to the morphology of the tooth perhaps reflects stress related to a phase of marked climatic changes during the Late Middle Pleistocene in Southeast Asia.
Document Type: Research article
Publication date: 1999-08-01