Osteology of Dashanpusaurus dongi (Sauropoda: Macronaria) and new evolutionary evidence from Middle Jurassic Chinese sauropods

doi:10.1080/14772019.2022.2132886

IVPP-IR > 中科院古脊椎所（2000年以后）

	Osteology of Dashanpusaurus dongi (Sauropoda: Macronaria) and new evolutionary evidence from Middle Jurassic Chinese sauropods
	Ren, Xin-Xin 1; Jiang, Shan 2,3,4; Wang, Xu-Ri 1; Peng, Guang-Zhao 2,3,4; Ye, Yong 2,3,4; King, Logan 5; You, Hai-Lu6,7,8
	2022-12-31
发表期刊	JOURNAL OF SYSTEMATIC PALAEONTOLOGY
ISSN	1477-2019
卷号	20 期号:1 页码:72
通讯作者	You, Hai-Lu(youhailu@ivpp.ac.cn)
摘要	The Middle Jurassic lower Shaximiao Formation in Sichuan Province of south-western China has yielded a diverse terrestrial vertebrate fauna dominated by sauropod dinosaurs. However, many of these sauropods lack detailed descriptions or explicit phylogenetic diagnoses. Here, we present a comprehensive redescription of Dashanpusaurus dongi, a species of sauropod found only in the lower Shaximiao Formation. We define the revised autapomorphies of the species as follows: neural canals are sub-square in anterior dorsal vertebrae; the presence of a thin accessory lamina that contacts the prezygodiapophyseal and paradiapophyseal laminae of the middle dorsals, forming an angle of 75 degrees to the horizontal; and four ridges on the anterodistal edge of the humerus. Often considered part of the epipophyseal-prezygapophyseal lamina, a strut invades the spinodiapophyseal fossa in the cervical and anterior dorsal vertebrae. Anatomical comparisons indicate that this feature was widespread among early-diverging Middle Jurassic eusauropod lineages. This comparative anatomical data provides an opportunity to revisit the phylogenetic position of Dashanpusaurus and the relationships of the neosauropod clade. Recovered as a macronarian, a better understanding of Dashanpusaurus dongi will allow for clarification of the origin, early evolution, and palaeogeographical distribution of neosauropods. This study also suggests that the diversity and dispersity of the neosauropod clade occurred much earlier than previously realized.
关键词	Sauropoda Neosauropoda Macronaria Dashanpusaurus dongi Middle Jurassic lower Shaximiao Formation
DOI	10.1080/14772019.2022.2132886
关键词[WOS]	PHYLOGENETIC-RELATIONSHIPS ; DINOSAURIA SAUROPODA ; SP-NOV ; YUNNAN PROVINCE ; FORELAND BASIN ; SICHUAN BASIN ; U-PB ; ANATOMY ; PATAGONIA ; REVISION
收录类别	SCI
语种	英语
资助项目	Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[42288201] ; National Natural Science Foundation of China[42102018] ; National Natural Science Foundation of China[41872021] ; China Geological Survey[DD20221649]
项目资助者	Chinese Academy of Sciences ; National Natural Science Foundation of China ; China Geological Survey
WOS研究方向	Evolutionary Biology ; Paleontology
WOS类目	Evolutionary Biology ; Paleontology
WOS记录号	WOS:000889505900001
出版者	TAYLOR & FRANCIS LTD
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/22087
专题	中科院古脊椎所（2000年以后）
通讯作者	You, Hai-Lu
作者单位	1.Chinese Acad Geol Sci, Inst Geol, Key Lab Stratig & Paleontol, Minist Nat Resources, Beijing 100037, Peoples R China 2.Zigong Dinosaur Museum, Zigong 643013, Peoples R China 3.Zigong Dinosaur Museum, Res Ctr Jurass Stratig & Paleontol, Zigong 643013, Peoples R China 4.Key Lab Paleontol & Paleoenvironment Coevolut Sich, Zigong 643013, Peoples R China 5.Univ Bristol, Sch Earth Sci, Queens Rd, Bristol BS8 1RJ, England 6.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 7.CAS Ctr Excellence Life & Paleoenvironment, Beijing 100044, Peoples R China 8.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Ren, Xin-Xin,Jiang, Shan,Wang, Xu-Ri,et al. Osteology of Dashanpusaurus dongi (Sauropoda: Macronaria) and new evolutionary evidence from Middle Jurassic Chinese sauropods[J]. JOURNAL OF SYSTEMATIC PALAEONTOLOGY,2022,20(1):72.
APA	Ren, Xin-Xin.,Jiang, Shan.,Wang, Xu-Ri.,Peng, Guang-Zhao.,Ye, Yong.,...&You, Hai-Lu.(2022).Osteology of Dashanpusaurus dongi (Sauropoda: Macronaria) and new evolutionary evidence from Middle Jurassic Chinese sauropods.JOURNAL OF SYSTEMATIC PALAEONTOLOGY,20(1),72.
MLA	Ren, Xin-Xin,et al."Osteology of Dashanpusaurus dongi (Sauropoda: Macronaria) and new evolutionary evidence from Middle Jurassic Chinese sauropods".JOURNAL OF SYSTEMATIC PALAEONTOLOGY 20.1(2022):72.