A new mamenchisaurid dinosaur from the Middle Jurassic of Yuanmou, Yunnan province, China

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	A new mamenchisaurid dinosaur from the Middle Jurassic of Yuanmou, Yunnan province, China
	Junchang, LU (Junchang, LUe)4; Tianguang, LI (Tianguang, L. I.); Shimin, Z (Shimin, Zhong); Qiang, JI (Qiang, J. I.); Shaoxue, LI (Shaoxue, L. I.)
刊名	ACTA GEOLOGICA SINICA-ENGLISH EDITION
	2008
卷号	82 期号:1 页码:17-26
关键词	Eomamenchisaurus mamenchisauridae sauropoda middle Jurassic Yunnan province
ISSN号	1000-9515
英文摘要	A new mamenchisaurid dinosaur, Eomamenchisaurus yuanmouensis gen et sp. nov. is erected based on an incomplete skeleton from the Zhanghe Formation, the Middle Jurassic of Yuanmou, Yunnan Province. The new taxon is characterized by absence of pleurocoels in dorsal vertebrae and the dorsal verterbrae with slightly convex anterior articular surfaces, moderately concave posterior articular surfaces; the fourth trochanter is developed posteromedially on the femur; length ratio of the tibia to the femur is approximately 0.64; and the shaft of the ischium is rod-like. Two fused centra of the posterior dorsal vertebrae (the presumed 9th and the 10th dorsal vertebrae) are similar to those in other mamenchisaurid dinosaurs, including Mamenchisaurus hochuanesis, M. youngi and Chuanjiesaurus anaensis. Therefore, fusion of centra of the ninth and the tenth dorsal vertebrae can be recognized as a synapomorphic character of the Mamenchisauridae.
学科主题	古生物学
WOS关键词	SAUROPOD DINOSAURS
WOS研究方向	Geology
语种	英语
出版者	GEOLOGICAL SOC CHINA
WOS记录号	WOS:000254930300002
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/38739]
专题	中国地质调查局
作者单位	1.[Junchang, LUe 2.Qiang, J. I.] Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China [Tianguang, L. I. 3.Yuanmou Museum, Yunnan 651300, Peoples R China 4.中国地质科学院地质研究所
推荐引用方式 GB/T 7714	Junchang, LU ,Tianguang, LI ,Shimin, Z ,et al. A new mamenchisaurid dinosaur from the Middle Jurassic of Yuanmou, Yunnan province, China[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2008,82(1):17-26.
APA	Junchang, LU ,Tianguang, LI ,Shimin, Z ,Qiang, JI ,&Shaoxue, LI .(2008).A new mamenchisaurid dinosaur from the Middle Jurassic of Yuanmou, Yunnan province, China.ACTA GEOLOGICA SINICA-ENGLISH EDITION,82(1),17-26.
MLA	Junchang, LU ,et al."A new mamenchisaurid dinosaur from the Middle Jurassic of Yuanmou, Yunnan province, China".ACTA GEOLOGICA SINICA-ENGLISH EDITION 82.1(2008):17-26.