Abstract: The Eocene mammalian fossils, Hannanomys lini gen. et sp. nov., Rodentia incertae sedis, and Rhombomylus cf. R turpanensis are described here. They were excavated from Leibei, the first Eocene fossil site recognized on the southem bank of Hanjiang River in Liguanqiao Basin, Hubei Province of China (Huang et al., 1996).

摘要： 描述了湖北省丹江口市均县镇一始新世化石点的3种哺乳动物化石，其中包括梳趾鼠类一新属种:林氏汉南鼠(新属、新种)Hannanomys lini gen. et sp. nov.。根据林氏汉南鼠与其他梳趾鼠类性状对比及该地点动物群组合特点推测其时代为早始新世晚期，与产于玉皇顶组中段的王家营大尖地方动物群的时代相当。该化石点是李官桥盆地中汉江南岸早始新世化石地点的首次发现，它的认定对在此地区寻找古新统/始新统界线有重要意义。