A revision of the referred specimen ofChuanjiesaurus anaensisFang et al., 2000: a new early branching mamenchisaurid sauropod from the Middle Jurassic of China

doi:10.1080/08912963.2020.1747450

	A revision of the referred specimen ofChuanjiesaurus anaensisFang et al., 2000: a new early branching mamenchisaurid sauropod from the Middle Jurassic of China
	Ren, Xin-Xin 1,2,3; Sekiya, Toru 4; Wang, Tao 5; Yang, Zhi-Wen 5; You, Hai-Lu 1,2,3
刊名	HISTORICAL BIOLOGY
	2020-04-10
页码	16
关键词	Chuanjie Yunnan middle Jurassic Chuanjie Formation Mamenchisauridae Analong
ISSN号	0891-2963
DOI	10.1080/08912963.2020.1747450
通讯作者	Ren, Xin-Xin(laotourenxin@126.com)
英文摘要	We present a revision of the referred specimen (LFGT LCD 9701-1) ofChuanjiesaurus anaensisfrom the Middle Jurassic Chuanjie Formation of Yunnan Province, southwest China, and demonstrate that LCD 9701-1 is differentiated from the holotype by numerous features. Therefore, it can be referred to a new taxon (Analong chuanjieensisgen. et sp. nov.).Analongbears a unique combination of characters, such as caudal transverse processes persisting until the 10th caudal (15th inChuanjiesaurus); weakly developed posterior condylar ball in anterior caudal vertebrae (well developed inChuanjiesaurus); ulnar anterolateral and anteromedial processes sub-equal in length and forming an angle of about 45 degrees (unequal in length and 60 degrees inChuanjiesaurus anaensis); proximal width of metacarpal II 7% the length of radius (lowest value among mamenchisaurids); pubic distal width approximately 40% of its total length (greatest value among mamenchisaurids). Comparative study and cladistic analysis showAnalong chuanjieensisis the earliest branching of Mamenchisauridae, while the (Mamenchisaurus+Chuanjiesaurus anaensis) branching is the latest branching of this clade. Our revision ofAnalong chuanjieensisincreases the diversity of Mamenchisauridae and indicates the evolution of Mamenchisauridae is a complex than previously realised.
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[41688103] ; National Natural Science Foundation of China[41872021]
WOS关键词	SUUWASSEA-EMILIEAE SAUROPODA ; DINOSAURIA SAUROPODA ; PHYLOGENETIC-RELATIONSHIPS ; EVOLUTIONARY HISTORY ; YUNNAN PROVINCE ; OSTEOLOGY ; ANATOMY
WOS研究方向	Life Sciences & Biomedicine - Other Topics ; Paleontology
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000558371900001
资助机构	Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://119.78.100.205/handle/311034/17935]
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Ren, Xin-Xin
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 2.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 4.Fukui Prefectural Dinosaur Museum, Katsuyama City, Japan 5.Bureau Land & Resources Lufeng Cty, Lufeng, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Ren, Xin-Xin,Sekiya, Toru,Wang, Tao,et al. A revision of the referred specimen ofChuanjiesaurus anaensisFang et al., 2000: a new early branching mamenchisaurid sauropod from the Middle Jurassic of China[J]. HISTORICAL BIOLOGY,2020:16.
APA	Ren, Xin-Xin,Sekiya, Toru,Wang, Tao,Yang, Zhi-Wen,&You, Hai-Lu.(2020).A revision of the referred specimen ofChuanjiesaurus anaensisFang et al., 2000: a new early branching mamenchisaurid sauropod from the Middle Jurassic of China.HISTORICAL BIOLOGY,16.
MLA	Ren, Xin-Xin,et al."A revision of the referred specimen ofChuanjiesaurus anaensisFang et al., 2000: a new early branching mamenchisaurid sauropod from the Middle Jurassic of China".HISTORICAL BIOLOGY (2020):16.