Discovery of the first early cenozoic Euprimate (Mammalia) from Inner Mongolia
文献类型：期刊论文
| 作者 | Ni, Xijun; Beard, K. Christopher; Meng, Jin; Wang, Yuanqing; Gebo, Daniel L.; Ni, XJ (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleonanthropol, Beijing 100044, Peoples R China. |
| 刊名 | AMERICAN MUSEUM NOVITATES
 |
| 出版日期 | 2007-05-16 |
| 期号 | 3571页码:1-11 |
| ISSN号 | 0003-0082 |
| 文献子类 | Article |
| 英文摘要 | Although it is widely thought that euprimates originated in Asia, the fossil record of early euprimates remains sparse there. We describe herein a new omomyid euprimate, Baataromomys ulaanus, n. gen. et sp., based on an isolated right lower m2 from Bumbanian strata at Wulanboerhe in the Erlian Basin of Inner Mongolia, China. In terms of the size and proportions of m2, Bawaromomys ulaanus is intermediate between Eurasian and North American species that are usually assigned to Teilhardina. Morphologically, m2 of Bawaromomys differs from that of Teilhardina and North American small-bodied omomyids (including Anemorhysis, Tetonoides, Trogolemur, and Sphacorhysis) in having a smaller paraconid that is less fully connate with the metaconid, a lower entoconid, a weaker crest connecting the metaconid with the entoconid, and a weaker buccal cingulid. The new taxon is much smaller and lower crowned than Steinius, a genus commonly regarded as a basal omomyid. Despite the substantial difference in size, the m2s of Bawaromomys and Steinius share some important features, including a very broad talonid basin and a relatively low hypoconid and cristid obliqua. Given its early occurrence and primitive anatomy, Bawaromomys may eventually help to clarify the phylogenetic relationships among basal omomyids, but more complete specimens will be required to test this possibility. Bawaromomys brandti from the basal Wasatchian zone Wa-0 in the northern Bighorn Basin, Wyoming, was previously allocated to Telihardina. However, several dental features shared by R brandti and B. ulaanus suggest that they are closely related. The co-occurrence of Bawaromomys in Asia and North America indicates that small-bodied euprimates were able to dispersal across the Beringian region near the Paleocene-Eocene boundary.; Although it is widely thought that euprimates originated in Asia, the fossil record of early euprimates remains sparse there. We describe herein a new omomyid euprimate, Baataromomys ulaanus, n. gen. et sp., based on an isolated right lower m2 from Bumbanian strata at Wulanboerhe in the Erlian Basin of Inner Mongolia, China. In terms of the size and proportions of m2, Bawaromomys ulaanus is intermediate between Eurasian and North American species that are usually assigned to Teilhardina. Morphologically, m2 of Bawaromomys differs from that of Teilhardina and North American small-bodied omomyids (including Anemorhysis, Tetonoides, Trogolemur, and Sphacorhysis) in having a smaller paraconid that is less fully connate with the metaconid, a lower entoconid, a weaker crest connecting the metaconid with the entoconid, and a weaker buccal cingulid. The new taxon is much smaller and lower crowned than Steinius, a genus commonly regarded as a basal omomyid. Despite the substantial difference in size, the m2s of Bawaromomys and Steinius share some important features, including a very broad talonid basin and a relatively low hypoconid and cristid obliqua. Given its early occurrence and primitive anatomy, Bawaromomys may eventually help to clarify the phylogenetic relationships among basal omomyids, but more complete specimens will be required to test this possibility. Bawaromomys brandti from the basal Wasatchian zone Wa-0 in the northern Bighorn Basin, Wyoming, was previously allocated to Telihardina. However, several dental features shared by R brandti and B. ulaanus suggest that they are closely related. The co-occurrence of Bawaromomys in Asia and North America indicates that small-bodied euprimates were able to dispersal across the Beringian region near the Paleocene-Eocene boundary. |
| URL标识 | 查看原文 |
| WOS关键词 | EARLY EOCENE ; PRIMATES ; PAKISTAN ; DIFFERENTIATION ; PALEOGENE ; ALTANIUS |
| WOS研究方向 | Biodiversity & Conservation ; Zoology |
| 语种 | 英语 |
| WOS记录号 | WOS:000246685500001 |
| 公开日期 | 2013-11-27 |
| 源URL | [http://119.78.100.205/handle/311034/3362]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 |
| 通讯作者 | Ni, XJ (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleonanthropol, Beijing 100044, Peoples R China. |
| 作者单位 | 1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleonanthropol, Beijing 100044, Peoples R China 2.Amer Museum Nat Hist, Div Paleontol, New York, NY 10024 USA 3.Carnegie Museum Nat Hist, Sect Vertebrate Paleontol, Pittsburgh, PA 15213 USA 4.No Illinois Univ, Dept Anthropol, De Kalb, IL 60115 USA |
| 推荐引用方式 GB/T 7714 | Ni, Xijun,Beard, K. Christopher,Meng, Jin,et al. Discovery of the first early cenozoic Euprimate (Mammalia) from Inner Mongolia[J]. AMERICAN MUSEUM NOVITATES,2007(3571):1-11. |
| APA | Ni, Xijun,Beard, K. Christopher,Meng, Jin,Wang, Yuanqing,Gebo, Daniel L.,&Ni, XJ .(2007).Discovery of the first early cenozoic Euprimate (Mammalia) from Inner Mongolia.AMERICAN MUSEUM NOVITATES(3571),1-11. |
| MLA | Ni, Xijun,et al."Discovery of the first early cenozoic Euprimate (Mammalia) from Inner Mongolia".AMERICAN MUSEUM NOVITATES .3571(2007):1-11. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。