古脊椎动物学报2010，Vol.48Issue(4)：390-401,12.
中国内蒙古最早始新世的啮齿类
NEW RODENTS FROM THE EARLIEST EOCENE OF NEI MONGOL,CHINA
摘要
Abstract
New rodent material is described from the Bumbanian Gomphos bed in Earlian Basin.Nei Mongol(Inner Mongolia),China.A new genus and species,Yuanomys zhoui,is named.The new spe-cies differs from other Early Eocene rodents in having slim and isolated cusps and eonules on cheek teeth and transverse paracone and metaeone with steep surfaces facing a broad trigon basin.These fea-tures of Y. zhoui to some degree resemble those of alagomyids.Constrained magneto- and biostrati-graphically,the occurrence of these rodents indicates that the earliest radiation of rodents with modern aspect probably took place during the period of mid-Paleocene to Early Eocene.关键词
内蒙古/早始新世/啃齿类/啮齿类分异时间Key words
Nei Mongol/Early Eocene/rodents/rodent divergence分类
生物科学引用本文复制引用
孟津,李传虁 ..中国内蒙古最早始新世的啮齿类[J].古脊椎动物学报,2010,48(4):390-401,12.基金项目
国家重点基础研究发展计划项目(编号:2006CB806400)、科技部科技基础性工作专项"中国地层立典剖面及若干断代全球界线层型"(编号:2006FY120300-15)和国家自然科学基金(编号:40532010)资助.This project has been supported by the Major Basic Research Projects of MST of China(2006CB806400),the Basic Work Program of MST of China(2006FY12030015),and the National Natural Science Foundation of China(40532010). （编号:2006CB806400）
