A new metriacanthosaurid theropod dinosaur from the Middle Jurassic of Yunnan Province, China
文献类型：期刊论文
| 作者 | Zou, Yi2,3; Chen, Li4; Wang, Tao5; Wang, Guo-Fu4; Zhang, Wei-Gang6; Zhang, Xiao-Qin7; Wang, Zhen-Ji7; Wu, Xiao-Chun1; You, Hai-Lu2,3 |
| 刊名 | PEERJ
 |
| 出版日期 | 2025-04-02 |
| 卷号 | 13页码:54 |
| 关键词 | Metriacanthosauridae Theropod Middle Jurassic Yunnan Province |
| ISSN号 | 2167-8359 |
| DOI | 10.7717/peerj.19218 |
| 通讯作者 | You, Hai-Lu(youhailu@ivpp.ac.cn) |
| 英文摘要 | Metriacanthosaurid theropods represent a basal-branching lineage of tetanurans. Members of this clade are mainly medium to large-sized and lived in Laurasia during the Middle Jurassic to the Early Cretaceous. In this clade, Sinraptor dongi, Sinraptor hepingensis, and Yangchuanosarus shangyouensis from the Late Jurassic are well represented by the nearly complete specimens, but the incompleteness of Middle Jurassic taxa hinders our knowledge of the origin and early evolution of Metriacanthosauridae. This paper describes a new genus and species of metriacanthosaurids, Yuanmouraptor jinshajiangensis gen. et sp. nov, from the Middle Jurassic Zhanghe Formation of Yunnan Province, China. The new taxon is represented by a cranium and the anterior section of the vertebral column including the complete cervical series and the first dorsal vertebra. Yuanmouraptor jinshajiangensis can be diagnosed based on the following autapomorphies: the anterior process of postorbital sheet-shaped and keeping consistent depth; ventral ramus of postorbital bearing a laterally twisted trough running along its lateral surface; ventral surface of axial intercentrum parallel with that of axial centrum; discontinuity of inclination on anterodorsal margin of the third and fourth cervical vertebrae; strongly posteriorly elongated epipophyses of anterior cervical vertebrae; deeply excavated pneumatic foramina on the third cervical vertebra; sheet-shaped and subrectangular neural spines of posterior cervical vertebrae. Phylogenetic analysis recovers Yuanmouraptor as the most basal-branching member within Metriacanthosauridae and provides a new alternative phylogenetic topology of non-coelurosaurian tetanurans. |
| WOS关键词 | MAJUNGASAURUS-CRENATISSIMUS THEROPODA ; CONCAVENATOR-CORCOVATUS THEROPODA ; CARCHARODONTOSAURID DINOSAURIA ; OSTEOLOGY ; PHYLOGENY ; EVOLUTION ; ABELISAURIDAE ; BRAINCASE ; PATAGONIA ; XINJIANG |
| 资助项目 | National Natural Science Foundation of China |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001477690400001 |
| 出版者 | PEERJ INC |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://119.78.100.205/handle/311034/24749]  |
| 专题 | 中国科学院古脊椎动物与古人类研究所 |
| 通讯作者 | You, Hai-Lu |
| 作者单位 | 1.Canadian Museum Nat, Ottawa, ON, Canada 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 4.Chuxiong Prefectural Museum, Chuxiong, Peoples R China 5.Bur Nat Resources Lufeng City, Ctr Dinosaur Res & Protect, Lufeng, Peoples R China 6.Chuxiong Jurass Cultural Tourism Ind Pk Dev Co Ltd, Chuxiong, Peoples R China 7.Chuxiong Normal Univ, Chuxiong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zou, Yi,Chen, Li,Wang, Tao,et al. A new metriacanthosaurid theropod dinosaur from the Middle Jurassic of Yunnan Province, China[J]. PEERJ,2025,13:54. |
| APA | Zou, Yi.,Chen, Li.,Wang, Tao.,Wang, Guo-Fu.,Zhang, Wei-Gang.,...&You, Hai-Lu.(2025).A new metriacanthosaurid theropod dinosaur from the Middle Jurassic of Yunnan Province, China.PEERJ,13,54. |
| MLA | Zou, Yi,et al."A new metriacanthosaurid theropod dinosaur from the Middle Jurassic of Yunnan Province, China".PEERJ 13(2025):54. |
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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