An Early Miocene microtoid cricetid rodent from the Junggar Basin of Xinjiang, China
文献类型：期刊论文
| 作者 | Maridet, O ; Wu, WY ; Ye, H ; Meng, J(孟津) ; Bi, SD（毕顺东） ; Ni, XJ(倪喜军) |
| 刊名 | ACTA PALAEONTOLOGICA POLONICA
 |
| 出版日期 | 2014 |
| 卷号 | 59期号:1页码:59,1-7 |
| 关键词 | Mammalia Rodentia Cricetidae Arvicolinae Miocene Junggar China Central Asia |
| ISSN号 | 0567-7920 |
| 通讯作者 | Ni, XJ(倪喜军) (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Evolutionary Systemat Vertebrates, Beijing 100044, Peoples R China. |
| 英文摘要 | Microtoid cricetids are widely considered to be the ancestral form of arvicoline rodents, a successful rodent group including voles, lemmings and muskrats. The oldest previously known microtoid cricetid is Microtocricetus molassicus from the Late Miocene (MN9, ca. 10-11 Ma) of Europe. Here, we report a new microtoid cricetid, Primoprismus fejfari gen. et sp. nov., from the Junggar Basin of Xinjiang, northwestern China. The rodent assemblage found in association with this specimen indicates a late Early Miocene age, roughly estimated at 18-17 Ma, and thus more than 6 million years older than M. molassicus. While morphological comparisons suggest that the new taxon is most closely related to M. molassicus, it differs from the latter in a striking combination of primitive characters, including a lower crown, smaller size, a differentiated posterolophid and hypolophid, a faint anterolophid, the absence of an ectolophid, and the presence Of a stylid on the labial border of the tooth. Arid conditions prevailing across the mid-latitude interior of Eurasia during the Early Miocene, enhanced by the combined effects of the Tibetan uplift and the gradual retreat of the Tethys Ocean, likely played a role in the appearance of grasslands, which in turn triggered the evolution of microtoid cricetids and, ultimately, the origin of arvicoline rodents. |
| 收录类别 | SCI |
| 资助信息 | Strategic Priority Research Program of Chinese Academy of Sciences (CAS) [XDB03020501]; National Basic Research Program of China [2012CB821904]; CAS 100-talent Program; National Natural Science Foundation of China [NSFC 40672009, 40872032]; NSFC [41050110135]; Research Fellowship for International Young Researchers from the Chinese Academy of Sciences [2009Y2BZ3]; National Science Foundation [EF-0629811] |
| 语种 | 英语 |
| 公开日期 | 2014-12-12 |
| 源URL | [http://119.78.100.205/handle/311034/5172]  |
| 专题 | 古脊椎动物与古人类研究所_古哺乳动物研究室 |
| 推荐引用方式 GB/T 7714 | Maridet, O,Wu, WY,Ye, H,et al. An Early Miocene microtoid cricetid rodent from the Junggar Basin of Xinjiang, China[J]. ACTA PALAEONTOLOGICA POLONICA,2014,59(1):59,1-7. |
| APA | Maridet, O,Wu, WY,Ye, H,Meng, J,Bi, SD,&Ni, XJ.(2014).An Early Miocene microtoid cricetid rodent from the Junggar Basin of Xinjiang, China.ACTA PALAEONTOLOGICA POLONICA,59(1),59,1-7. |
| MLA | Maridet, O,et al."An Early Miocene microtoid cricetid rodent from the Junggar Basin of Xinjiang, China".ACTA PALAEONTOLOGICA POLONICA 59.1(2014):59,1-7. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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