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A new perleidid neopterygian fish from the Early Triassic (Dienerian, Induan) of South China, with a reassessment of the relationships of Perleidiformes

文献类型：期刊论文

作者Yuan, Zhiwei3; Xu, Guang-Hui1,2; Dai, Xu3; Wang, Fengyu3; Liu, Xiaokang3; Jia, Enhao3; Miao, Luyi3; Song, Haijun3
刊名PEERJ
出版日期2022-05-17
卷号10页码:31
ISSN号2167-8359
关键词Early Triassic Neopterygii Phylogeny Osteology Biotic recovery
DOI10.7717/peerj.13448
通讯作者Miao, Luyi(xuguanghui@ivpp.ac.cn) ; Song, Haijun(haijunsong@cug.edu.cn)
英文摘要Neopterygii is the largest Glade of ray-finned fishes, including Teleostei, Holostei, and their closely related fossil taxa. This Glade was first documented in the Early Carboniferous and underwent rapid evolutionary radiation during the Early to Middle Triassic. This article describes a new perleidid neopterygian species, Teffichthys elegans sp. nov., based on 13 well-preserved specimens from the lower Daye Formation (Dienerian, Induan) in Guizhou, China. The new species documents one of the oldest perleidids, providing insights into the early diversification of this family. The results of a phylogenetic analysis recover Teffichthys elegans sp. nov. as the sister taxon to Teffichthys madagascariensis within the Perleididae. T. elegans sp. nov. shares three derived features of Perleididae: the length of the anteroventral margin of the dermohyal nearly half the length of the anterodorsal margin of the preopercle; the anteroventral margin of the preopercle nearly equal to the anterior margin of the subopercle in length; and the anteroventral margin of the preopercle one to two times as long as the anterodorsal margin of the preopercle. It possesses diagnostic features of Teffichthys but differs from T. madagascariensis by the following features: presence of three supraorbitals; six pairs of branchiostegal rays; relatively deep anterodorsal process of subopercle; absence of spine on the posterior margin of the jugal; and pterygial formula of D26/P14, A22, C36/T39-41. The Perleidiformes are restricted to include only the Perleididae, and other previously alleged 'perleidiform' families (e.g., Hydropessidae and Gabanellidae) are excluded to maintain the monophyly of the order. Similar to many other perleidids, T. elegans sp. nov. was likely a durophagous predator with dentition combining grasping and crushing morphologies. The new finding also may indicate a relatively complex trophic structure of the Early Triassic marine ecosystem in South China.
WOS关键词ANHUI PROVINCE ; ACTINOPTERYGII ; OSTEICHTHYES ; PHYLOGENY ; GUIZHOU ; YUNNAN ; PLATYSIAGIDAE ; REDESCRIPTION ; SCANILEPIFORM ; EVOLUTION
资助项目National Natural Science Foundation of China[92155201] ; National Natural Science Foundation of China[41821001] ; National Natural Science Foundation of China[42172008] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; 111 Project[B08030]
WOS研究方向Science & Technology - Other Topics
语种英语
出版者PEERJ INC
WOS记录号WOS:000800551300002
资助机构National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; 111 Project
源URL[http://119.78.100.205/handle/311034/21621]  
专题古脊椎动物与古人类研究所_图书馆1
通讯作者Miao, Luyi; Song, Haijun
作者单位1.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
2.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China
3.China Univ Geosci, Sch Earth Sci, State Key Lab Biogeol & Environm Geol, Wuhan, Peoples R China
推荐引用方式
GB/T 7714		 Yuan, Zhiwei,Xu, Guang-Hui,Dai, Xu,et al. A new perleidid neopterygian fish from the Early Triassic (Dienerian, Induan) of South China, with a reassessment of the relationships of Perleidiformes[J]. PEERJ,2022,10:31.
APA Yuan, Zhiwei.,Xu, Guang-Hui.,Dai, Xu.,Wang, Fengyu.,Liu, Xiaokang.,...&Song, Haijun.(2022).A new perleidid neopterygian fish from the Early Triassic (Dienerian, Induan) of South China, with a reassessment of the relationships of Perleidiformes.PEERJ,10,31.
MLA Yuan, Zhiwei,et al."A new perleidid neopterygian fish from the Early Triassic (Dienerian, Induan) of South China, with a reassessment of the relationships of Perleidiformes".PEERJ 10(2022):31.

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来源：古脊椎动物与古人类研究所

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