辽宁下白垩统阜新组真兽类哺乳动物新带氏远藤兽(Endotherium niinomii Shikama,1947)再研究

摘要：

根据正型标本的印痕和翻制的模型,重新研究了产于辽宁阜新新邱阜新组的早白垩世真兽类哺乳动物新带氏远藤兽(Endotherium niinomii Shikama,1947).对照Shikama (1947)的原始描述,将E.niinomii的主要特征归纳为:下臼齿从m1到m3逐渐变小;下三角座和下跟座的高差不是很大:下臼齿的齿尖钝;下原尖比下前尖和下后尖大,并且下前尖和下后尖高度相近;可能有5个前臼齿,并且p3不明显变小.这些特征组合足以将该属与其他的白垩纪真兽类相区别,因此认为Endotherium niinomii是一个有效种.

关键词：辽宁阜新、早白垩世、阜新组、哺乳动物、真兽类、远藤兽

所属期刊栏目：56

分类号：Q915.873(古生物学)

资助基金：中国科学院战略性先导科技专项B类XDB18000000;国家自然科学基金41688103,41541015;大连市科技计划项目20044J9JH238;日本学术振兴会科学研究费补助金若手研究B编号:24740349,16K17830资助.We are grateful to Wang Zhiyan and Shen Caizhi Dalian Museum of Natural History for help in accessing and observing the type specimen of Endotherium.We thank Wang Zhao IVPP for making the cast from the impression of the type s;Masahiro Ichida;Mao Fangyuan IVPP for their help in SEM photographing.Specimen observation in Russia was kindly supported by Alexander O.Averianov Zoological Institute,Russian Academy of Sciences.We are also grateful to the reviewers for their critical reading and informative suggestions,and to Yinmai O'Connorno.XDB 18000000;the National Natural Science Foundation of Chinano.41688103,41541015;the Dalian Municipal Science and Technology Plan Projectsno.20044J9JH238

在线出版日期：2018-08-30（万方平台首次上网日期，不代表论文的发表时间）

页数：共13页

页码：180-192