Two New Mylagaulid Rodents from the Early Miocene of China
文献类型：期刊论文
| 作者 | Lu, Xiaoyu1; Ni, Xijun1,2; Li, Luzhou1; Li, Qiang1,2 |
| 刊名 | PLOS ONE
 |
| 出版日期 | 2016-08-03 |
| 卷号 | 11期号:8 |
| DOI | 10.1371/journal.pone.0159445 |
| 文献子类 | Article |
| 英文摘要 | Mylagaulid fossorial rodents are a common component of North American Miocene fossil faunas. However outside of North America, only three species are known from Asia. Here we report two new mylagaulids, Irtyshogaulus minor gen. et sp. nov. and Irtyshogaulus major gen. et sp. nov., recovered from early Miocene sediments in the Junggar Basin in northwestern China. The two new taxa are small-sized, high-crowned promylagauline rodents. Their lower molars possess high metastylid crests, small mesostylids, broad and posterolingually expanded labial inflections, and transversely extending metalophid IIs. The mesoconid is absent in both species. The anterior and posterior fossettids are large and equally developed. Their upper M1-2s possess a square occlusal surface with five deep fossettes. The two new taxa are distinguished from each other mainly by their size, the morphology of fossettes and fossettids, development of mesial and distal lophs, posterior reduction of M3, and the orientation of m2 hypolophid. Our phylogenetic analysis indicates that Irtyshogaulus and Lamugaulus (another early Miocene Asian mylagaulid) are sister taxa. The two genera are nested among the North American promylagaulines, and share a common ancestor from North America, indicating early Miocene intercontinental dispersal within this clade of rodents. |
| WOS关键词 | MAMMALIA ; EVOLUTION |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000381367800030 |
| 资助机构 | Strategic Priority Research Program of Chinese Academy of Sciences (CAS)(XDB03020000) ; National Basic Research Program of China(2012CB821904) ; CAS 100-talent Program ; National Natural Science Foundation of China(41472025) |
| 源URL | [http://124.16.247.212/handle/311034/7031]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, 142 Xi Zhi Men Wai, Beijing 100044, Peoples R China 2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Xiaoyu,Ni, Xijun,Li, Luzhou,et al. Two New Mylagaulid Rodents from the Early Miocene of China[J]. PLOS ONE,2016,11(8). |
| APA | Lu, Xiaoyu,Ni, Xijun,Li, Luzhou,&Li, Qiang.(2016).Two New Mylagaulid Rodents from the Early Miocene of China.PLOS ONE,11(8). |
| MLA | Lu, Xiaoyu,et al."Two New Mylagaulid Rodents from the Early Miocene of China".PLOS ONE 11.8(2016). |
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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