KMS Institute of Vertebrate Paleontology and Paleoanthropology
A new early branching armored dinosaur from the Lower Jurassic of southwestern China | |
Yao, Xi1; Barrett, Paul M.2; Yang, Lei3; Xu, Xing1,4,5; Bi, Shundong1,6 | |
2022-03-15 | |
发表期刊 | ELIFE |
ISSN | 2050-084X |
卷号 | 11页码:37 |
通讯作者 | Xu, Xing(xu.xing@ivpp.ac.cn) ; Bi, Shundong(sbi@iup.edu) |
摘要 | The early evolutionary history of the armored dinosaurs (Thyreophora) is obscured by their patchily distributed fossil record and by conflicting views on the relationships of Early Jurassic taxa. Here, we describe an early diverging thyreophoran from the Lower Jurassic Fengjiahe Formation of Yunnan Province, China, on the basis of an associated partial skeleton that includes skull, axial, limb, and armor elements. It can be diagnosed as a new taxon based on numerous cranial and postcranial autapomorphies and is further distinguished from all other thyreophorans by a unique combination of character states. Although the robust postcranium is similar to that of more deeply nested ankylosaurs and stegosaurs, phylogenetic analysis recovers it as either the sister taxon of Emausaurus or of the clade Scelidosaurus+ Eurypoda. This new taxon, Yuxisaurus kopchicki, represents the first valid thyreophoran dinosaur to be described from the Early Jurassic of Asia and confirms the rapid geographic spread and diversification of the clade after its first appearance in the Hettangian. Its heavy build and distinctive armor also hint at previously unrealized morphological diversity early in the clade's history. |
关键词 | armoured dinosaur Thyreophora Ankylosauromorpha Other |
DOI | 10.7554/eLife.75248 |
关键词[WOS] | SCELIDOSAURUS-HARRISONII ; ANKYLOSAUR DINOSAURIA ; KOTA FORMATION ; ORNITHISCHIA ; ENGLAND ; REDESCRIPTION ; PHYLOGENY ; AFRICA ; DORSET ; SKULL |
收录类别 | SCI |
语种 | 英语 |
资助项目 | Willi Hennig Society ; Double First-Class joint program of Science & Technology Department of Yunnan and Yunnan University[2018FY001-005] |
项目资助者 | Willi Hennig Society ; Double First-Class joint program of Science & Technology Department of Yunnan and Yunnan University |
WOS研究方向 | Life Sciences & Biomedicine - Other Topics |
WOS类目 | Biology |
WOS记录号 | WOS:000779069000001 |
出版者 | eLIFE SCIENCES PUBL LTD |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.205/handle/311034/21430 |
专题 | 中科院古脊椎所(2000年以后) |
通讯作者 | Xu, Xing; Bi, Shundong |
作者单位 | 1.Yunnan Univ, Ctr Vertebrate Evolutionary Biol, Kunming, Yunnan, Peoples R China 2.Nat Hist Museum, Dept Earth Sci, London, England 3.Yimen Adm Cultural Heritage, Yimen, Peoples R China 4.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Evolutionary Systemat Vertebrates, Beijing, Peoples R China 5.Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China 6.Indiana Univ Penn, Dept Biol, Indiana, PA 15705 USA |
推荐引用方式 GB/T 7714 |
Yao, Xi,Barrett, Paul M.,Yang, Lei,et al. A new early branching armored dinosaur from the Lower Jurassic of southwestern China [J]. ELIFE,2022,11:37. |
APA |
Yao, Xi,Barrett, Paul M.,Yang, Lei,Xu, Xing,&Bi, Shundong.(2022). A new early branching armored dinosaur from the Lower Jurassic of southwestern China .ELIFE,11,37. |
MLA |
Yao, Xi,et al." A new early branching armored dinosaur from the Lower Jurassic of southwestern China ".ELIFE 11(2022):37. |
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