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Earliest long-necked sauropterygian Lijiangosaurus yongshengensis and plasticity of vertebral evolution in sauropterygian marine reptiles

文献类型：期刊论文

作者Wang, Wei1; Shang, Qinghua1; Wang, Jiansheng2; Zi, Hongke3; Li, Chun1
刊名COMMUNICATIONS BIOLOGY
出版日期2025-11-11
卷号8期号:1页码:11
DOI10.1038/s42003-025-08911-1
通讯作者Shang, Qinghua(shangqinghua@ivpp.ac.cn)
英文摘要A long neck is a morphological innovation in vertebrates, particularly iconic in many plesiosaurs, while the function of these long necks in plesiosaurs remains controversial. Here, we report Lijiangosaurus yongshengensis gen. et sp. nov. from a previously unknown early Middle Triassic locality in southwestern China. This taxon represents the earliest known sauropterygian evolving an exceptionally long neck with 42 cervical vertebrae, and is identified as a nothosaur rather than the immediate ancestors of plesiosaurs. Our discovery demonstrates that extreme cervical elongation developing more than 30 cervical vertebrae emerged in sauropterygians prior to the rise of plesiosaurs and their pistosaur ancestors. Furthermore, Lijiangosaurus possesses a unique type of accessory intervertebral articulation compared with other reptiles, and we attribute this structure to reducing body undulation. This discovery increases the known diversity of accessory intervertebral articulations in reptiles, and underscores the high plasticity of the vertebral column in the early evolution of sauropterygians.
WOS关键词LOWER MUSCHELKALK ; YUNNAN PROVINCE ; ET-AL. ; NOTHOSAURUS ; INFORMATION ; SKELETON ; SKULL ; CYMATOSAURUS ; WINTERSWIJK ; OSTEOLOGY
资助项目Second Comprehensive Scientific Expedition on the Tibetan Plateau[2019QZKK0705] ; National Natural Science Foundation of China[42472023] ; National Natural Science Foundation of China[42002019] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Chinese Academy of Sciences[XDB26000000]
WOS研究方向Life Sciences & Biomedicine - Other Topics ; Science & Technology - Other Topics
语种英语
WOS记录号WOS:001612315500003
出版者NATURE PORTFOLIO
资助机构Second Comprehensive Scientific Expedition on the Tibetan Plateau ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Chinese Academy of Sciences
源URL[http://119.78.100.205/handle/311034/25106]  
专题中国科学院古脊椎动物与古人类研究所
通讯作者Shang, Qinghua
作者单位1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China
2.Yunnan Biantun Cultural Museum Yongsheng, Lijiang, Yunnan, Peoples R China
3.Lijiang Municipal Adm Culture & Tourism, Lijiang, Yunnan, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Wei,Shang, Qinghua,Wang, Jiansheng,et al. Earliest long-necked sauropterygian Lijiangosaurus yongshengensis and plasticity of vertebral evolution in sauropterygian marine reptiles[J]. COMMUNICATIONS BIOLOGY,2025,8(1):11.
APA Wang, Wei,Shang, Qinghua,Wang, Jiansheng,Zi, Hongke,&Li, Chun.(2025).Earliest long-necked sauropterygian Lijiangosaurus yongshengensis and plasticity of vertebral evolution in sauropterygian marine reptiles.COMMUNICATIONS BIOLOGY,8(1),11.
MLA Wang, Wei,et al."Earliest long-necked sauropterygian Lijiangosaurus yongshengensis and plasticity of vertebral evolution in sauropterygian marine reptiles".COMMUNICATIONS BIOLOGY 8.1(2025):11.

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来源：古脊椎动物与古人类研究所

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