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New data on the cranial anatomy of Pterogonaspis (Tridensaspidae, Galeaspida) from the lower Devonian of Yunnan, China and its evolutionary implications

文献类型：期刊论文

作者Meng, Xin-Yuan3,4; Zhu, Min2,3,4; Li, Qiang1; Gai, Zhi-Kun2,3,4
刊名ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY
出版日期2022-10-21
页码14
ISSN号1932-8486
关键词dorsal aorta esophagus Pterogonaspis Qujing Yunnan
DOI10.1002/ar.25098
通讯作者Gai, Zhi-Kun(gaizhikun@ivpp.ac.cn)
英文摘要New material of the tridensaspid Pterogonaspis yuhaii is described from the Xujiachong Formation in Qujing City, Yunnan Province, revealing the morphology of the ventral side of the headshield for the first time. Most significantly, the cranial anatomy of Pterogonaspis provides the first fossil evidence for the position of the esophagus in galeaspids. The esophagus and dorsal aortae display a central placement in the postbranchial region and do not share a common canal as in osteostracans. Moreover, the paired and symmetrically extending dorsal aortae in galeaspids strikingly resemble those of jawed vertebrates, probably representing a plesiomorphic condition for vertebrates because they are also present in amphioxus and hagfishes. In contrast, the unpaired and asymmetrically extending dorsal aorta in osteostracans is similar to that of lampreys, probably resulting from convergent evolution. In addition, our new data also exhibit some characters that galeaspids uniquely share with osteostracans, such as the complete endoskeletal postbranchial wall and the extensive lateral expansion of the headshield with the marginal arteries and veins.
WOS关键词BLOOD-VESSELS ; SP-NOV ; PHYLOGENY ; DIVERSITY ; HEART
资助项目National Nature Science Foundation of China[41972006] ; National Program for support of Top-notch Young Professionals ; Strategic Priority Research Program of CAS[XDB26000000]
WOS研究方向Anatomy & Morphology
语种英语
出版者WILEY
WOS记录号WOS:000870899400001
资助机构National Nature Science Foundation of China ; National Program for support of Top-notch Young Professionals ; Strategic Priority Research Program of CAS
源URL[http://119.78.100.205/handle/311034/22014]  
专题古脊椎动物与古人类研究所_图书馆1
通讯作者Gai, Zhi-Kun
作者单位1.Qujing Normal Univ, Res Ctr Nat Hist & Culture, Qujing, Peoples R China
2.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Beijing, Peoples R China
4.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins Chinese, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
推荐引用方式
GB/T 7714		 Meng, Xin-Yuan,Zhu, Min,Li, Qiang,et al. New data on the cranial anatomy of Pterogonaspis (Tridensaspidae, Galeaspida) from the lower Devonian of Yunnan, China and its evolutionary implications[J]. ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY,2022:14.
APA Meng, Xin-Yuan,Zhu, Min,Li, Qiang,&Gai, Zhi-Kun.(2022).New data on the cranial anatomy of Pterogonaspis (Tridensaspidae, Galeaspida) from the lower Devonian of Yunnan, China and its evolutionary implications.ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY,14.
MLA Meng, Xin-Yuan,et al."New data on the cranial anatomy of Pterogonaspis (Tridensaspidae, Galeaspida) from the lower Devonian of Yunnan, China and its evolutionary implications".ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY (2022):14.

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来源：古脊椎动物与古人类研究所

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