Summary The Shihuiba locality (Lufengpithecus site) at Lufeng, Yunnan is one of the most important Miocene mammal fauna sites in China. The Hipparion fossils collected from this locality from 1975 to 1983 were identified as Hipparion sp. 1 and Hipparion sp. 2. Recently, a further study of these fossils indicated that they represent two species.