STATUS OF CHAOHUSAURUS CHAOXIANENSIS (CHEN, 1985)

doi:10.1080/02724634.2014.892011

	STATUS OF CHAOHUSAURUS CHAOXIANENSIS (CHEN, 1985)
	Motani, Ryosuke 1; Jiang, Da-Yong 2,3; Tintori, Andrea 4; Rieppel, Olivier 5; Chen, Guan-Bao 6; You, Hailu 7
	2015-01-02
发表期刊	JOURNAL OF VERTEBRATE PALEONTOLOGY
ISSN	0272-4634
卷号	35 期号:1 页码:8
摘要	The Early Triassic ichthyopterygian Chaohusaurus chaoxianensis was previously known from juvenile specimens only. It was considered to represent immature forms of C. geishanensis, which was based on a single adult specimen, because allometric regression lines of the forelimb skeletons suggested that the two name groups fitted along a single growth trajectory. The sample size for the analysis, however, was small (n = 5). We collected new specimens of Chaohusaurus from Majiashan, Chaohu City, Anhui Province, China, through field excavations that started in 2010. New specimens included an immature individual whose forelimb resembled that of mature C. geishanensis, as well as a large adult individual whose forelimb retained the characteristics of immature C. chaoxianensis. Therefore, C. chaoxianensis is not the juvenile of C. geishanensis. With the addition of the new specimens, two growth trajectories are now clearly detected on allometric regression plots (n = 15). The two species are unambiguously distinguished from each other based on a suite of discrete characters that are diagnostic to each species, as well as statistical analyses of forelimb measurements. It is unlikely that the two forms represent the genders of a single species given that C. geishanensis is vastly outnumbered by C. chaoxianensis and completely lacking in major fossiliferous rock layers. Therefore, C. chaoxianensis should be resurrected as a valid species.
DOI	10.1080/02724634.2014.892011
语种	英语
关键词[WOS]	ICHTHYOSAURS ; EVOLUTION ; CHINA
资助项目	National Geographic Society Committee for Research and Exploration[8669-09] ; National Natural Science Foundation of China[40920124002] ; National Natural Science Foundation of China[41372016] ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS)[123102] ; Research Fund for the Doctoral Program of Higher Education[20120001110072] ; Department of Land and Resource of Anhui Province
WOS研究方向	Paleontology
WOS类目	Paleontology
WOS记录号	WOS:000356911500014
项目资助者	National Geographic Society Committee for Research and Exploration ; National Natural Science Foundation of China ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS) ; Research Fund for the Doctoral Program of Higher Education ; Department of Land and Resource of Anhui Province
出版者	TAYLOR & FRANCIS INC
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/11914
专题	中国科学院南京地质古生物研究所
通讯作者	Motani, Ryosuke
作者单位	1.Univ Calif Davis, Dept Earth & Planetary Sci, Davis, CA 95616 USA 2.Peking Univ, Dept Geol & Geol Museum, Lab Orogen Belt & Crustal Evolut, Minist Educ, Beijing 100871, Peoples R China 3.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Jiangsu, Peoples R China 4.Univ Milan, Dipartimento Sci Terra, I-20133 Milan, Italy 5.Field Museum Nat Hist, Ctr Integrat Res, Chicago, IL 60605 USA 6.Anhui Geol Museum, Dept Res, Hefei 230031, Anhui, Peoples R China 7.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
第一作者单位	中国科学院南京地质古生物研究所
通讯作者单位	中国科学院南京地质古生物研究所
推荐引用方式 GB/T 7714	Motani, Ryosuke,Jiang, Da-Yong,Tintori, Andrea,et al. STATUS OF CHAOHUSAURUS CHAOXIANENSIS (CHEN, 1985)[J]. JOURNAL OF VERTEBRATE PALEONTOLOGY,2015,35(1):8.
APA	Motani, Ryosuke,Jiang, Da-Yong,Tintori, Andrea,Rieppel, Olivier,Chen, Guan-Bao,&You, Hailu.(2015).STATUS OF CHAOHUSAURUS CHAOXIANENSIS (CHEN, 1985).JOURNAL OF VERTEBRATE PALEONTOLOGY,35(1),8.
MLA	Motani, Ryosuke,et al."STATUS OF CHAOHUSAURUS CHAOXIANENSIS (CHEN, 1985)".JOURNAL OF VERTEBRATE PALEONTOLOGY 35.1(2015):8.