云南中甸新发现的早更新世哺乳动物

描述了最近发现于横断山脉中段的一批哺乳类化石 ,具体地点位于云南迪庆州中甸县城 (香格里拉 )以南约 6km处的公路旁。这批材料包括灵长类 (Procynocephaluscf.P .wimani)、啮齿类 (Hystrixsp .)、食肉类、奇蹄类 (Equusyunnanensis)及偶蹄类 ,其中以鹿类 (Cer vavitusultimus、Eucladocerossp .、Cervus (Rusa)yunnanensis等 )和牛羊类最为丰富 ,揭示了当时一种混合的森林 -草原环境。从动物群总体面貌来看 ,这批哺乳类可与元谋人动物群相比 ,时代为更新世早期。但其中有些种类与北方早更新世类群相似 ,如真枝角鹿及羚羊等 ,表明该动物群也与北方动物群之间存在着某种生物地理上的联系。

NEW EARLY PLEISTOCENE MAMMALIAN MATERIALS FROM ZHONGDIAN, YUNNAN PROVINCE, CHINA

A number of mammal fossils were recently collected from the central part of the Hengduan Mountain ranges in northwestern Yunnan Province. The mammals described in this paper include a primate (Procynocephalus cf. P. wimani Schlosser, 1924), a hystricid rodent (Hystrix sp.), a perissodactyl (Equus yunnanensis Colbert, 1940), and a few artiodactyls (Cervavitus ultimus (Lin et al., 1978), Eucladoceros sp., Cervus (Rusa) yunnanensis Lin et al., 1978, Muntiacus sp., Gazella sp. and Leptobos sp.) In addition to those described, other fossils (complete or fragments) include Cervus (Sika) sp., Bison sp., rhinocerotoid (Perissodactyla) tooth fragments and hyaenid (Carnivora) coprolites. Overall the fossils indicate an early Pleistocene age. In this mammal fauna cervids (deers) and bovids (oxen and sheep) were predominant, which suggests a mixed forest-grassland environment. In this fauna there are many identical forms with those in the Yuanmou Man fauna; in addition, there are also some taxa that are similar to those in northern China, which suggests some kind of biogeographic relations.