| An Early Miocene microtoid cricetid rodent from the Junggar Basin of Xinjiang, China | |
| Maridet, Olivier1; Wu, Wenyu1; Ye, He1; Meng, Jin2; Bi, Shundong1; Ni, Xijun1; Ni, XJ(倪喜军) (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Evolutionary Systemat Vertebrates, Beijing 100044, Peoples R China. | |
| 2014-03-01 | |
| 发表期刊 | ACTA PALAEONTOLOGICA POLONICA
 |
| ISSN | 0567-7920 |
| 卷号 | 59期号:1页码:1-7 |
| 文章类型 | Article |
| 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. |
| 关键词 | Mammalia Rodentia Cricetidae Arvicolinae Miocene Junggar China Central Asia |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 关键词[WOS] | ARAGONIAN VERTEBRATE FAUNA ; MUROID RODENTS ; EVOLUTIONARY HISTORY ; MOLECULAR PHYLOGENY ; NORTH-AMERICA ; MAMMALIA ; GENE ; RADIATION ; XIACAOWAN ; PLIOCENE |
| 收录类别 | SCI |
| 语种 | 英语 |
| 项目资助者 | 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] |
| WOS研究方向 | Paleontology |
| WOS类目 | Paleontology |
| WOS记录号 | WOS:000334146800001 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/5172 |
| 专题 | 古哺乳动物研究室 |
| 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. |
| 作者单位 | 1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Evolutionary Systemat Vertebrates, Beijing 100044, Peoples R China 2.Amer Museum Nat Hist, Div Paleontol, New York, NY 10024 USA |
| 推荐引用方式 GB/T 7714 | Maridet, Olivier,Wu, Wenyu,Ye, He,et al. An Early Miocene microtoid cricetid rodent from the Junggar Basin of Xinjiang, China[J]. ACTA PALAEONTOLOGICA POLONICA,2014,59(1):1-7. |
| APA | Maridet, Olivier.,Wu, Wenyu.,Ye, He.,Meng, Jin.,Bi, Shundong.,...&Ni, XJ.(2014).An Early Miocene microtoid cricetid rodent from the Junggar Basin of Xinjiang, China.ACTA PALAEONTOLOGICA POLONICA,59(1),1-7. |
| MLA | Maridet, Olivier,et al."An Early Miocene microtoid cricetid rodent from the Junggar Basin of Xinjiang, China".ACTA PALAEONTOLOGICA POLONICA 59.1(2014):1-7. |
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