Abstract: The fossils of Tragulidae collected from layers 1-6 of section D at Shihuiba of the hominoid site of Lufeng, Yunnan, are identified to be Yunnanotherium simpler gen. et sp. , a new form of Tragulidae, and Dorcabune progressus (Yan) in this paper.

Key words: Tragulidae; Artiodactyla; Late Miocene; Lufeng