Abstract: A karstic cave called Laodong with rich late Miocene mammals was found in 1990 in the Dajushan（117°01 'E, 32°35 'N）area，15km northwest of Huainan City，Anhui Province in eastern China (Jin et al., 1999; Jin, 2004). During the implementation of the State Key Project of the 9 th " Five-year-plan " Jin and colleagues found two other fossil localities. One of them is located in a fissure called Xiliexi (it means West Fissure in Chinese) and about 60 m west of the Laodong Cave. Many mammal fossils were unearthed from the fissure deposits. 4 species of ruminants were identified as below.