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First discovery of Promimomys (Arvicolidae) in East Asia

机译:在东亚首次发现Promimomys(Arvicolidae)

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摘要

Promimomys asiaticus sp. nov., the first known species of the genus in East Asia, is described. The material was collected from the early Pliocene cave deposit in Daju-sliatt Hill, Huainan, Anhui Province. Promimomys was first found in Europe and considered as the ancestor of the family Arvicolidae. The new species from China is distinct from the type species, P, cor, and other known species in its thicker enamel of uniform thickness, simple anterior loop of ml, and Jjluat, salient angles. It is more primitive than other known species in Europe and North America and also more primitive than Mimomys bilikeensis of early Pliocene of Inner Mongolia. It is thus the earliest and the most primitive arvicolid rodent known. The discovery of Promimomys asiaticus sp, nov. is significant to the study on the origin and the phytogeny of arvicolids, and to the discussion of the intercontinental dispersal events of arvicolids.
机译:Promimomys asiaticus sp。 nov。是东亚第一个已知的属。该材料是从安徽省淮南市大菊-斯利特山的上新世早期洞穴沉积物中收集的。 Promimomys最早在欧洲发现,被认为是Arvicolidae家族的祖先。来自中国的新物种与P,cor,cor和其他已知物种的类型不同,其搪瓷厚度均匀,单前环简单ml和Jjluat凸角。它比欧洲和北美的其他已知物种更原始,也比内蒙古上新世早期的Mimomys bilikeensis更原始。因此,它是已知最早,最原始的鼠李类啮齿动物。 11月Promimomys asiaticus sp。的发现。对于研究阿维科利德的起源和植物遗传学以及对阿维科利德的洲际传播事件的讨论都具有重要意义。

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