Discovery of a Late Miocene mammalian fauna from Siziwang Banner,Inner Mongolia,and its paleozoogeographical significance  

作　　者：DENG Tao LIANG Zhong WANG ShiQi HOU SuKuan LI Qiang 

机构地区：[1]Key Laboratory of Evolutionary Systematics of Vertebrates, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China [2]China Geological Library, Beijing 100083, China [3]Graduate University of the Chinese Academy of Sciences, Beijing 100049, China

出　　处：《Chinese Science Bulletin》2011年第6期526-534,共9页

基　　金：supported by the National Natural Science Foundation of China (40730210);the Knowledge Innovation Program of the Chinese Academy of Sciences (KZCX2-YW-Q09-120);the Ministry of Science and Technology of China (2006CB806400 and 2006-FY120300);China National Commission on Stratigraphy

摘　　要：Wulanhua 动物志(7 妈) 源于基础部分在 Siziwang 旗帜的近来中新世的红泥土，内部蒙古。中国红泥土存款富于 Hipparion 动物志的石块，并且广泛地相对越过山西， Shaanxi，河南省，和 Gansu 省被散布。蒙古的高原也包含开发得好的晚第三纪存款，特别在中央内部蒙古，在哺乳动物的动物志的一个序列被识别了的地方。Wulanhua 动物志的发现提供 Hipparion 动物志的 paleogeographical 分发的重要指示物，并且这研究也贡献红泥土的气候、环境的意义的更好的理解。Wulanhua 动物志的大多数形式与一样或在 Baode 动物志以内关门到 taxa。然而，一些形式是稍微，更多 Baode 动物志比那些发源，它可以显示大约 7 妈的稍微更年轻的地质的年龄。Wulanhua 动物志的部件建议产地是一个典型大草原因此产出直接证据描出在东方和在诺思中国的晚中新世的 Hipparion 动物志的西方分区之间的边界。The Wulanhua Fauna （-7 Ma） derives from the basal part of Late Miocene red clays in Siziwang Banner, Inner Mongolia. Chi- nese red clay deposits are rich in fossils of the Hipparion fauna, and are relatively widely distributed across Shanxi, Shaanxi, He- nan, and Gansu provinces. The Mongolian Plateau also contains well-developed Neogene deposits, especially in central Inner Mongolia, where a sequence of mammalian faunas has been identified. The discovery of the Wulanhua Fauna provides an impor- tant indicator of the paleogeographical distribution of the Hipparion fauna, and this study also contributes to a better understand- ing of the climatic and environmental significance of red clays. Most forms of the Wulanhua Fauna are the same as or close to taxa within the Baode Fauna. However, some forms are slightly more derived than those of the Baode Fauna, which may indicate a slightly younger geological age of about 7 Ma. The components of the Wulanhua Fauna suggest that the habitat was a typical steppe and therefore yield direct evidence to delineate the boundary between the east and west subregions of the Late Miocene Hipparion fauna in North China.

关 键 词：哺乳动物群 内蒙古中部 晚中新世 四子王旗 三趾马动物群 古地理分布 粘土矿床 蒙古高原 

分 类 号：P588.121[天文地球—岩石学] Q915.87[天文地球—地质学]