A new stem-neopterygian fish from the Middle Triassic (Anisian) of Yunnan, China, with a reassessment of the relationships of early neopterygian clades

doi:10.1093/zoolinnean/zlaa053

IVPP-IR > 中科院古脊椎所（2000年以后）

	A new stem-neopterygian fish from the Middle Triassic (Anisian) of Yunnan, China, with a reassessment of the relationships of early neopterygian clades
	Xu, Guang-Hui1,2
	2021-02-01
发表期刊	ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
ISSN	0024-4082
卷号	191 期号:2 页码:375-394
通讯作者	Xu, Guang-Hui([email protected])
摘要	Neopterygii is a taxonomically diverse group of ray-finned fishes, including Teleostei, Holostei and their closely related fossil taxa. Here, a new small-sized stem-neopterygian with extraordinarily long teeth, Louwoichthys pusillus gen. et sp. nov., is described based on 14 well-preserved specimens from the Middle Triassic (Anisian) marine deposits of Yunnan, China. Louwoichthys is closely related to Luopingichthys from the same fossil beds and Ctenognathichthys from the Middle Triassic of the Monte San Giorgio area in Europe; the three genera are grouped into the family Louwoichthyidae fam. nov., which is recovered as sister to the 'perleidiform' Pseudobeaconiidae. Given that 'Perleidiformes' is notoriously paraphyletic, a new order, Louwoichthyiformes ord. nov., is introduced to group both families. The louwoichthyiform monophyly is strongly supported by a series of derived features, such as a relatively short maxilla, an anteriorly inclined preopercle, a subopercle with a prominent anteroventral extension, and two or three pairs of branchiostegal rays. Louwoichthys is one of the smallest louwoichthyiforms, having a largest standard length of 39 mm. It is deduced to be a scavenger that might use its long and sharp teeth to grasp and tear the prey from the substrate or to bite a piece from a larger prey item.
关键词	fossil record neopterygian osteology phylogeny taxonomy
DOI	10.1093/zoolinnean/zlaa053
关键词[WOS]	ACTINOPTERYGII ; OSTEICHTHYES ; PROVINCE ; EVOLUTION ; GENUS ; INTERRELATIONSHIPS ; PERLEIDIFORMES ; PHYLOGENY ; REVISION ; SCANILEPIFORM
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program (B) of Chinese Academy of Sciences[XDB 26000000] ; Strategic Priority Research Program (B) of Chinese Academy of Sciences[18000000] ; National Natural Science Foundation of China (NSFC)[41672001] ; National Natural Science Foundation of China (NSFC)[41688103] ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences[QYZDB-SSW-DQC040]
项目资助者	Strategic Priority Research Program (B) of Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences
WOS研究方向	Zoology
WOS类目	Zoology
WOS记录号	WOS:000612199300003
出版者	OXFORD UNIV PRESS
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/18674
专题	中科院古脊椎所（2000年以后）
通讯作者	Xu, Guang-Hui
作者单位	1.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Xu, Guang-Hui. A new stem-neopterygian fish from the Middle Triassic (Anisian) of Yunnan, China, with a reassessment of the relationships of early neopterygian clades[J]. ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY,2021,191(2):375-394.
APA	Xu, Guang-Hui.(2021).A new stem-neopterygian fish from the Middle Triassic (Anisian) of Yunnan, China, with a reassessment of the relationships of early neopterygian clades.ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY,191(2),375-394.
MLA	Xu, Guang-Hui."A new stem-neopterygian fish from the Middle Triassic (Anisian) of Yunnan, China, with a reassessment of the relationships of early neopterygian clades".ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY 191.2(2021):375-394.