Abstract: Six Eocene localities in eastern China, ranging geographically fromJilin to Jiangsu provinces and in age from Irdinmanhan to late Sharamurunian or Ergilian, have yielded four genera (Haozi, Suomys, and Andersomys named as new here and Zelomys) assigned to the new rodent family Zelomyidae. The family is characterized by a primitive protrogomorphous2sciurognathous zygomasseteric structure and pauciserial incisor enamel, but the cheek teeth are precocious in development of hypocone and hypolophid. Later members of the family exhibit a development of buccal flattening to selenodonty of the cusps of the cheek teeth. Relationships of the new family are unclear, although some dental similarities suggest affinities with the Eomyidae. On the other hand, differences from eomyids may suggest that the zelomyids are an independently derived Asian Eocene family.

摘要： 继1990 年王伴月和李春田记述了发现在吉林桦甸中始新世的争胜鼠(Zelomys) 之后, 近年又在山西垣曲、河南卢氏、江苏溧阳等地的中始新世到晚始新世(Irdinmanhan-late Shara-murupnian or Ergilian) 的5 个地点中陆续发现了一些与争胜鼠相近的新材料。经研究后,将所有材料归诸于创建的一新科:争胜鼠科(Zelomyidae fam. nov. ) 。它包括了争胜鼠及本文新记述的安氏鼠(Andersomys gen. nov. ) 、耗子(Haozi gen. no