Fuyuanichthys wangi gen. et sp. nov. from the Middle Triassic (Ladinian) of China highlights the early diversification of ginglymodian fishes

doi:10.7717/peerj.6054

	Fuyuanichthys wangi gen. et sp. nov. from the Middle Triassic (Ladinian) of China highlights the early diversification of ginglymodian fishes
	Xu, Guang-Hui1,2 ; Ma, Xin-Ying 1,2,3; Ren, Yi 1,2,3
刊名	PEERJ
	2018-12-20
卷号	6 页码:24
关键词	Fossil Ginglymodi Holostei Neopterygii Actinopterygii
ISSN号	2167-8359
DOI	10.7717/peerj.6054
通讯作者	Xu, Guang-Hui(xuguanghui@ivpp.ac.cn)
英文摘要	A series of well-preserved fossil assemblages from the Middle Triassic marine rock succession in Southwest China provide unique evidences for studying the early evolution of holostean fishes, including Halecomorphi (e.g., bownfin) and Ginglymodi (e.g., gars). Ginglymodi have the earliest record in the early Middle Triassic (Anisian, similar to 244 Ma) of China, represented by Kyphosichthys and Sangiorgioichthys sui from Yunnan and S. yangjuanensis from Guizhou. Here, we report the discovery of a new ginglymodian, Fuyuanichthys wangi gen. et sp. nov., based on 22 well-preserved specimens from the lower part of the Zhuganpo member of the Falang Formation in eastern Yunnan and western Guizhou, which documents the first discovery of convincing ginglymodians from the late Middle Triassic (Ladinian, similar to 240 Ma) Xingyi biota in China. Fuyuanichthys possesses a unique combination of features that easily distinguishes it from other ginglymodians, such as presence of a median gular and short and edentulous maxillae, and absence of a supramaxilla and supraorbitals. As one of the smallest known ginglymodians with a maximum standard length of similar to 75 mm, the new finding further supports that the Middle Triassic Ginglymodi have a relatively small range of body sizes compared with the Halecomorphi from the same ecosystems in China. Results of a phylogenetic analysis recover Fuyuanichthys as a sister taxon to Kyphosichthys at the ginglymodian stem, and provide new insights into the early evolution of this clade.
资助项目	Chinese Academy of Sciences[XDB 26000000] ; Chinese Academy of Sciences[18000000] ; National Natural Science Foundation of China (NSFC)[41672001] ; National Natural Science Foundation of China (NSFC)[41272002] ; National Natural Science Foundation of China (NSFC)[41688103] ; Key research program of Frontier Sciences of Chinese Academy of Sciences[QYZDB-SSW-DQC040] ; Funds for Paleontology Fieldwork and Fossil Preparation, Chinese Academy of Sciences
WOS关键词	STEM-NEOPTERYGIAN FISH ; GUIZHOU PROVINCE ; YUNNAN PROVINCE ; ACTINOPTERYGII ; HALECOMORPHI ; PHYLOGENY ; INTERRELATIONSHIPS ; SEMIONOTIFORMES ; SWITZERLAND ; REVISION
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	PEERJ INC
WOS记录号	WOS:000453929400003
资助机构	Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; Key research program of Frontier Sciences of Chinese Academy of Sciences ; Funds for Paleontology Fieldwork and Fossil Preparation, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://119.78.100.205/handle/311034/9157]
专题	中国科学院古脊椎动物与古人类研究所
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, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Xu, Guang-Hui,Ma, Xin-Ying,Ren, Yi. Fuyuanichthys wangi gen. et sp. nov. from the Middle Triassic (Ladinian) of China highlights the early diversification of ginglymodian fishes[J]. PEERJ,2018,6:24.
APA	Xu, Guang-Hui,Ma, Xin-Ying,&Ren, Yi.(2018).Fuyuanichthys wangi gen. et sp. nov. from the Middle Triassic (Ladinian) of China highlights the early diversification of ginglymodian fishes.PEERJ,6,24.
MLA	Xu, Guang-Hui,et al."Fuyuanichthys wangi gen. et sp. nov. from the Middle Triassic (Ladinian) of China highlights the early diversification of ginglymodian fishes".PEERJ 6(2018):24.