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描述了安徽繁昌癞痢山塘口晚新生代裂隙堆积物中发现的松鼠类材料。化石代表松鼠亚科的4个族,共有5属6种,其中包括一个新属和两个新种,即树松鼠族的Sciurus sp.,花鼠族的Tamias sp.和Plesiosciurus zhengi sp.nov.,旱獭族的Sciurotamias wangi Qiu,2002和S.teilhardi Zheng,1993,以及巨松鼠族的Pseudoratufa wanensis gen.et sp.nov.。所研究的材料系混合地采自同一裂隙堆积的4个不同层位,化石的组分可能代表从早中新世至更新世的不同时段。繁昌的这一松鼠组合具有中国中南部晚新生代松鼠动物群的特色,并含有稀奇的Pseudoratufa属。该新属的牙齿形态显示了其树栖松鼠的特征,而且可以归入甚为稀有的巨松鼠族。其遗骸具有与该地点发现的古猿、硅藻鼠和河狸类化石相似的石化和堆积过程,似乎表明这些动物属于时代相同或较接近的群体,它们的共存也说明了繁昌地区在中新世时有过相对湿润的森林生境。
The squirrel-like materials found in late Cenozoic fissures in Tangkou, Fanlahang, Anhui Province are described. Fossils represent four families of the squirrel subfamily, a total of 5 genera and 6 species, including a new genus and two new species, namely Sciurus sp., Tree squirrel, Tamias sp. And Plesiosciurus zhengi sp. Sciurotamias wangi Qiu, 2002 and S. teilhardi Zheng, 1993, of the marmota family, and Pseudoratufa wanensis gen. Et sp. Nov, of the giant squirrel family. The studied materials were collected from four different horizons deposited in the same rift, and the composition of the fossil may represent different periods from the Early Miocene to the Pleistocene. This squirrel assemblage in Fanchang features the late Cenozoic squirrel fauna in south-central China and contains the unusual Pseudoratufa genus. The new form of teeth shows the characteristics of its arboreal squirrel, and can be classified as a very rare giant squirrel family. Its remains have similar petrochemical and depositional processes to the palea, diatom and beaver fossils found at this site and appear to indicate that these animals belong to the same or similar groups of the times, and their coexistence also indicates that the prosperous areas in China The world had relatively humid forest habitat.