关键词: 第四纪, 哺乳动物, 动物地理区划

Abstract: Zoogeographical regions of Quaternary mammalian faunas of China can be divided into the North China region and its Northeast subregion,the South China region and the transitional region between the North and South in the eastern part of China.The ridge area of Qinling Mountains is considered as the boundary of the North and the South regions which started obviously in the late Early Pleistocene or the early Middle Pleistocene．Owing to some of the main members such as:Coelodmtta antiquitatis，Bosprimigenius，Equus hemionus，Gazella cf．przewalskyi Myospalax fontaMeri etc.，of the Late Pleistocene fauna in north China were discovered from the deposits of eastern Sichuan,such as Aba,Luhuo,we would consider easily that the area of north China region in the Late Pleistocene had expanded，and the boundary of the North and South regions might be turned from somewhere of Qinting Mountains,then,along the eastern margin of Qinghai-Xizang plateau down to the South， Itis true thatthere is a transitional region,but it owns its new meaning is different from the previous Huaihe transitional region，it was situated between the North and the South，in the eastern part of China its areais much bigger and its age started much earlier than those of the previous one．It reached Lantian，Shaanxi in the late of Early Pleistocene．Then，moved eastward,and the area of this region became smaller，Since the late of Middle Pleistocene 0n,the transitional region area was limited to the Huang-Huai plain and sometimes even to the south of Yangtze River．In general，the transitional area moved eastward along with the uplift of Qinling Mountains firstly，then southward or northward along with the climate became warmer and humid or cooler and drier．

Key words: Zoogeographical divisions, Quaternary, Mammalian