古脊椎动物学报2021，Vol.59Issue(2)：125-137,13.DOI:10.19615/j.cnki.1000-3118.210323
内蒙古韩家营玄武岩夹层中三趾马动物群化石
An Upper Miocene"Hipparion fauna"locality sandwiched by basalt in Hanjiaying,Nei Mongol
摘要
Abstract
Here we report a Hipparion fauna locality discovered in between two basalt layers near Hanjiaying Village,Jining District,Wulanchabu City,Nei Mongol.K-Ar isotopic dating of the lower and upper level of the basalt constrains the age of the fauna from 7.2 to 6.8 Ma.Compared with classical Hipparion fauna from northern China,the Hanjiaying fauna is closer to those from Baode of Shanxi,Siziwang Banner of Nei Mongol and the Linxia Basin of Gansu.It is similar to the Loc.43,44 and 49 from Baode by faunal composition,confirming their age to be～7.0 Ma rather than 5.5 Ma.The high similarity with the fossils from Wulanhua,Siziwang Banner,Nei Mongol,verified the age of Wulanhua fauna at about 7 Ma.Compared with faunas from the Linxia Basin,Gansu,it is more similar to those from the upper part of the Liushu Formation,especially the Yangjiashan fauna.Based on the faunal composition and their tooth morphology,the Hanjiaying fauna could be included in the"Gazella dorcadoides"fauna,which is supposed to be at the west paleobiome in northern China during the Late Miocene.关键词
内蒙古/集宁区/晚中新世/三趾马动物群/K-Ar测年Key words
Nei Mongol/Jining District/Late Miocene/Hipparion fauna/K-Ar dating分类
生物科学引用本文复制引用
王倩,刘艳,王李花,傅明楷,张兆群..内蒙古韩家营玄武岩夹层中三趾马动物群化石[J].古脊椎动物学报,2021,59(2):125-137,13.基金项目
国家自然科学基金(批准号:41402003)、国家基础科学人才培养基金(批准号:J1210008)和中国科学院战略性先导科技专项(B类)(编号:XDB26030301)资助. （批准号:41402003）
