An exquisitely preserved skeleton of Eoarctos vorax (nov. gen. et sp.) from Fitterer Ranch, North Dakota (early Oligocene) and systematics and phylogeny of North American early arctoids (Carnivora, Caniformia)
文献类型：期刊论文
| 作者 | Wang, Xiaoming4,5,6; Emry, Robert J.3; Boyd, Clint A.2; Person, Jeff J.2; White, Stuart C.1; Tedford, Richard H.5 |
| 刊名 | JOURNAL OF VERTEBRATE PALEONTOLOGY
 |
| 出版日期 | 2022-06-29 |
| 卷号 | 42页码:1-123 |
| ISSN号 | 0272-4634 |
| DOI | 10.1080/02724634.2022.2145900 |
| 通讯作者 | Wang, Xiaoming(xwang@nhm.org) |
| 英文摘要 | An exquisitely preserved male skeleton of an early arctoid, Eoarctos vorax new genus and species, provides a unique window into the origin and early divergence of Carnivora. Recovered from the Fitterer Ranch locality in the early Oligocene (Orellan to Whitneyan North American Land Mammal ages) Brule Formation of southwestern North Dakota (similar to 32 Ma), the new arctoid offers an opportunity to evaluate the fundamental relationships of the caniform (dog-like) carnivorans. Eoarctos vorax possesses a suite of plesiomorphic characters inherited from its miacid ancestors, making it an ideal model for ancestral arctoids. We present a comprehensive treatment of E. vorax, combining traditional description with photographic documentation, microCT, laser scans, and photogrammetry. Showing its plesiomorphic morphology, Eoarctos vorax is scansorial, somewhat like a modern raccoon, retaining the ability to climb trees and lacking cursorial adaptations present in the early canid Hesperocyon. However, E. vorax shows clear signs of durophagous cranio-dental morphology, presumably for an obligatory diet of mollusks, with frequent damage to shell-crushing premolars, plus associated dental infections. We review several other key North American early arctoids and present total-evidence (nuclear DNA and discrete morphological characters) Bayesian and parsimony analyses of Caniformia phylogeny, including extinct stem taxa plus a living member of all modern families. We recognize an endemic North American ursoid clade, Subparictidae, which includes Eoarctos vorax. We demonstrate the importance of North America as an early cradle of evolution for caniform carnivorans, including early precursors of Canidae, Amphicyonidae, Ursidae, and Pinnipedia. |
| WOS关键词 | MAGERICYON-ANCEPS CARNIVORA ; BODY-MASS ESTIMATION ; LATE MIOCENE ; PROLIFERATIVE PERIOSTITIS ; FUNCTIONAL-ANATOMY ; INTERFAMILIAL RELATIONSHIPS ; CHRONIC OSTEOMYELITIS ; POSTCRANIAL SKELETON ; MOLECULAR PHYLOGENY ; SEXUAL-DIMORPHISM |
| 资助项目 | Western University of Health Sciences, Pomona ; National Science Foundation[EAR-1227212] ; National Science Foundation[1949742] ; Deutsche Forschungsgemeinschaft ; Natural History Museum of Los Angeles County |
| WOS研究方向 | Paleontology |
| 语种 | 英语 |
| 出版者 | TAYLOR & FRANCIS INC |
| WOS记录号 | WOS:001000520900002 |
| 资助机构 | Western University of Health Sciences, Pomona ; National Science Foundation ; Deutsche Forschungsgemeinschaft ; Natural History Museum of Los Angeles County |
| 源URL | [http://119.78.100.205/handle/311034/22653]  |
| 专题 | 中国科学院古脊椎动物与古人类研究所 |
| 通讯作者 | Wang, Xiaoming |
| 作者单位 | 1.Univ Calif Los Angeles, Sch Dent, 10833 Conte Ave, Los Angeles, CA 90095 USA 2.North Dakota Geol Survey, Bismarck, ND 58505 USA 3.Smithsonian Inst, Natl Museum Nat Hist, Dept Paleobiol, Washington, DC 20560 USA 4.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 5.Amer Museum Nat Hist, Dept Vertebrate Paleontol, Cent Pk West & 79th St, New York, NY 10024 USA 6.Nat Hist Museum Angeles Cty, Dept Vertebrate Paleontol, 900 Exposit Blvd, Los Angeles, CA 90007 USA |
| 推荐引用方式 GB/T 7714 | Wang, Xiaoming,Emry, Robert J.,Boyd, Clint A.,et al. An exquisitely preserved skeleton of Eoarctos vorax (nov. gen. et sp.) from Fitterer Ranch, North Dakota (early Oligocene) and systematics and phylogeny of North American early arctoids (Carnivora, Caniformia)[J]. JOURNAL OF VERTEBRATE PALEONTOLOGY,2022,42:1-123. |
| APA | Wang, Xiaoming,Emry, Robert J.,Boyd, Clint A.,Person, Jeff J.,White, Stuart C.,&Tedford, Richard H..(2022).An exquisitely preserved skeleton of Eoarctos vorax (nov. gen. et sp.) from Fitterer Ranch, North Dakota (early Oligocene) and systematics and phylogeny of North American early arctoids (Carnivora, Caniformia).JOURNAL OF VERTEBRATE PALEONTOLOGY,42,1-123. |
| MLA | Wang, Xiaoming,et al."An exquisitely preserved skeleton of Eoarctos vorax (nov. gen. et sp.) from Fitterer Ranch, North Dakota (early Oligocene) and systematics and phylogeny of North American early arctoids (Carnivora, Caniformia)".JOURNAL OF VERTEBRATE PALEONTOLOGY 42(2022):1-123. |
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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