四川有蹄动物区系形成的探讨

A STUDY OF THE UNGULATE FAUNA IN SICHUAN

对四川有蹄动物现生种和化石种进行了比较，认为四川现今属东洋界的西南区和华中区有蹄动物区系是第三世纪上新世至第四纪中、晚更新世大熊猫。剑齿象（Ａｉｌｕｒｏｐｏｄａ－Ｓｔｅｇｏｄｏｎ）动物群的发展和继续，属古北界的青藏高原区，相当于晚更新世的北方动物群。同时还讨论了四川有蹄动物的兴衰演替与地理迁移，以及横断山脉对有蹄动物的保存分化和扩散的特殊意义。

By comparing living species with fossils of the ungulate fauna in Sichuan , the authors show that the present ungulate fauna of the Southwest Region and Middle- China Region ofthe Oriental Realm in Sichua came from the Ailuropoda-Stegodon of pliocene of Tertray through middle and later pleistocene of Quarternary , and that of the Qinghai-Tibet Region of the Palearctic Realm came from the north fauna of later pleistocene,and discuss the development, extinction,geographic migration of the ungulate fauna in Sichuan and special effect of Hengduan Mountain on reservation,spociation and dispersal of ungulates。