著者

Takehisa Tsubamoto Takanobu Tsuihiji Dong Pha Phan Dinh Hung Doan Naoko Egi Toshifumi Komatsu

出版者

The Geological Society of Japan

雑誌

地質学雑誌 (ISSN:00167630)

巻号頁・発行日

vol.128, no.1, pp.245-251, 2022-11-03 (Released:2022-11-03)

参考文献数

26

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A fossil specimen of Anthracokeryx naduongensis (Mammalia, Artiodactyla, Anthracotheriidae, Microbunodontinae) discovered in the middle/upper Eocene Na Duong Formation at Na Duong Coal Mine in northeastern Vietnam is described. The specimen is a left mandibular fragment preserving p3-m3. It is characterized by an association of features that is observed in A. naduongensis, including a small size relative to most of other anthracotheriids, bunodont to bunoselenodont dentition, weak cingula, and a hypolophid on the lower molars. This specimen illustrates the precise morphology of m2-m3 of A. naduongensis from the type locality.