古脊椎动物学报(中英文)2023，Vol.61Issue(4)：277-283,7.DOI:10.19615/j.cnki.2096-9899.230710
云南晚中新世一巨型竹鼠
A giant bamboo rat from the latest Miocene of Yunnan
摘要
Abstract
The Shuitangba subbasin lignite deposits of the Zhaotong Basin in northern Yunnan Province have produced vertebrate fossils of terminal Miocene age.We conducted test wet screening of fossiliferous sediment in 2014 to increase representation of small mammals.This effort produced four teeth of a very large bamboo rat,much larger than the previously known bamboo rat present at Shuitangba,and representing a new species.This new species is characterized by its molars being remarkably larger than those of other known species of Miorhizomys,and being hypsodont with cementum,and less anterorposteriorly compressed.The age of this new species from Shuitangba is in the range of 6.2 to 6.7 Ma.It appears that diverse bamboo rats of the extinct genus Miorhizomys were present in the Late Miocene of Yunnan,somewhat before the 6 Ma appearance of extant Rhizomys to the north in the vicinity of Shanxi Province.关键词
云南/水塘坝/晚中新世/小哺乳动物/竹鼠Key words
Shuitangba/Yunnan/Late Miocene/small mammals/bamboo rat分类
生物科学引用本文复制引用
劳伦斯J.弗林,李强,Jay KELLEY,Nina G.JABLONSKI,吉学平,Denise F.SU,王晓鸣..云南晚中新世一巨型竹鼠[J].古脊椎动物学报(中英文),2023,61(4):277-283,7.基金项目
第二次青藏高原综合科学考察专项(编号:2019QZKK0705)、中国科学院战略性先导科技专项(B类)(编号:XDB26000000)、国家自然科学基金(批准号:41430102)和美国国家科学基金(1227927)资助. （编号:2019QZKK0705）
