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A new long-snouted marine reptile from the Middle Triassic of China illuminates pachypleurosauroid evolution

文献类型：期刊论文

作者Xu, Guang-Hui5,6; Shang, Qing-Hua5,6; Wang, Wei5,6; Ren, Yi4,5,6; Lei, Hong3; Liao, Jun-Ling2; Zhao, Li-Jun1; Li, Chun5,6
刊名SCIENTIFIC REPORTS
出版日期2023-01-05
卷号13期号:1页码:13
ISSN号2045-2322
DOI10.1038/s41598-022-24930-y
通讯作者Shang, Qing-Hua(shangqinghua@ivpp.ac.cn)
英文摘要Sauropterygia is the largest, most successful group of Mesozoic marine diapsids, spanning from the late Early Triassic to the Late Cretaceous. Plesiomorphic for sauropterygians, pachypleurosauroids are important for our understanding on the early evolution of this group. Here, we present a new pachypleurosaurid, Luopingosaurus imparilis gen. et sp. nov., based on an exceptionally preserved skeleton from the early Middle Triassic Luoping Lagerstatte in Yunnan, China. The discovery documents the first long-snouted pachypleurosaurid with an unexpected hyperphalangy in the manus, providing new insights into the morphological diversification, ecological adaption and biogeographic evolution of this clade. The discovery further indicates that there is a morphological divergence between short-snouted (brevirostrine) keichousaurids and relatively long-snouted (longirostrine) pachypleurosaurids, which was probably driven by ecological specializations related to feeding and foraging. Additionally, an evolutionary trend towards the reduction of the ratio of the hyoid length to mandibular length (HM ratio) is recognized in pachypleurosauroids. This reduction of HM ratio, associated with the increase of the snout length, might implicate a gradual recession of suction feeding in pachypleurosauroid evolution. Phylogenetic studies incorporating Luopingosaurus recover European pachypleurosaurids as successive sister groups to Chinese derived pachypleurosaurids, supporting a western Tethyan origin for this family.
WOS关键词EOSAUROPTERYGIAN DIAPSIDA ; SAUROPTERYGIA ; INFORMATION ; GUIZHOU ; PALEOBIOGEOGRAPHY ; HYPERPHALANGY ; WUMENGOSAURUS ; PHYLOGENY ; OSTEOLOGY
资助项目Strategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB 26000000] ; National Natural Science Foundation of China[42172008] ; National Natural Science Foundation of China[41772006] ; National Natural Science Foundation of China[41372028] ; National Natural Science Foundation of China[42002019]
WOS研究方向Science & Technology - Other Topics
语种英语
出版者NATURE PORTFOLIO
WOS记录号WOS:000932732000005
资助机构Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; National Natural Science Foundation of China
源URL[http://119.78.100.205/handle/311034/22473]  
专题中国科学院古脊椎动物与古人类研究所
通讯作者Shang, Qing-Hua
作者单位1.Zhejiang Museum Nat Hist, Hangzhou 310014, Peoples R China
2.Xingyi Normal Univ Nationalities, Coll Econ & Management, Xingyi 562400, Peoples R China
3.Land & Resources Bur Luoping Cty, Luoping Biota Natl Geopk, Luoping 655800, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China
6.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Guang-Hui,Shang, Qing-Hua,Wang, Wei,et al. A new long-snouted marine reptile from the Middle Triassic of China illuminates pachypleurosauroid evolution[J]. SCIENTIFIC REPORTS,2023,13(1):13.
APA Xu, Guang-Hui.,Shang, Qing-Hua.,Wang, Wei.,Ren, Yi.,Lei, Hong.,...&Li, Chun.(2023).A new long-snouted marine reptile from the Middle Triassic of China illuminates pachypleurosauroid evolution.SCIENTIFIC REPORTS,13(1),13.
MLA Xu, Guang-Hui,et al."A new long-snouted marine reptile from the Middle Triassic of China illuminates pachypleurosauroid evolution".SCIENTIFIC REPORTS 13.1(2023):13.

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来源：古脊椎动物与古人类研究所

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