古脊椎动物学报2017，Vol.55Issue(4)：315-330,16.DOI:10.19615/j.cnki.1000-3118.170721
中国东部晚新生代堆积中的刺山鼠化石
Platacanthomyid remains from the late Cenozoic deposits of East China
摘要
Abstract
Remains of Platacanthomyidae from a late Cenozoic fissure in Fanchang,Anhui,and from the Miocene deposits of Sihong,Jiangsu,China are described.Three species and two genera,including two new species are recognized.They are Neocometes sinensis sp.nov.from Fanchang and Sihong,and N.magna sp.nov.and Typhlomys sp.from Fanchang.The Fanchang assemblage is a mixed sample with elements probably representing an interval spanning from the Early Miocene to the Pleistocene.Judging from fossil content and coloration in the sample,the two species of Neocometes are inferred to be Miocene in age,while the Typhlomys to be later.The joint occurrence of some typical Miocene elements in the assemblage seems to indicate that the Fanchang sample includes an association which can be closely correlated with the Early Miocene Sihong Fauna and the Shanwang Fauna of China,and with the Miocene faunas known from Thailand.Dental characters of Neocomets appear to suggest that the Asian species of the genus have undergone a rapid increase of size,heightening of dental crown,strengthening of ridges,and gradually development of ectoloph in the upper molars and endolophid in the lower molars,representing an evolutionary lineage different from that of Europe.关键词
安徽繁昌/江苏泗洪/晚新生代/裂隙堆积/刺山鼠科Key words
Fanchang and Sihong, China/late Cenozoic/fissure-filling/Platacanthomyidae分类
生物科学引用本文复制引用
邱铸鼎,金昌柱..中国东部晚新生代堆积中的刺山鼠化石[J].古脊椎动物学报,2017,55(4):315-330,16.基金项目
国家自然科学基金重点项目(批准号:41430102)和中国科学院先导培育项目(编号:XDPB05)资助. （批准号:41430102）
