A new hadrosauroid dinosaur from the mid-Cretaceous of Liaoning, China

	A new hadrosauroid dinosaur from the mid-Cretaceous of Liaoning, China
	You, HL; Ji, Q; Li, JL; Li, YX
刊名	ACTA GEOLOGICA SINICA-ENGLISH EDITION
	2003
卷号	77 期号:2 页码:148-154
关键词	Dinosauria Hadrosauroidea Hadrosauridae Sunjiawan Formation mid-Cretaceous Liaoning China
ISSN号	1000-9515
英文摘要	A new hadrosauroid dinosaur, Shuangmiaosaurus gilmorei gen. et sp. nov., is described based on a complete left maxilla with articulated premaxilla and lacrimal fragments, and a complete left dentary from the mid-Cretaceous Sunjiawan Formation of Beipiao, Liaoning, northeastern China. Cladistic analysis shows that Shuangmiaosaurus is a basal hadrosauroid, and comprises the sister taxon to Hadrosauridae. In both Shuangmiaosaurus and Hadrosauridae, the maxilla-jugal suture is butt-jointed, rather than finger-in-recess articulation as in other basal hadrosauroids. However, Shuangmiaosaurus does not possess such hadrosaurid synapomorphies as the diamond-shaped maxillary crowns with reduced primary ridges and reduced marginal denticles.
学科主题	古生物学
WOS关键词	ASIAN ORNITHOPODS DINOSAURIA ; ORNITHISCHIA ; ROZHDESTVENSKY ; EVOLUTION
WOS研究方向	Geology
语种	英语
出版者	GEOLOGICAL SOC CHINA
WOS记录号	WOS:000184210600002
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/37598]
专题	中国地质科学院地质研究所
作者单位	Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China.
推荐引用方式 GB/T 7714	You, HL,Ji, Q,Li, JL,et al. A new hadrosauroid dinosaur from the mid-Cretaceous of Liaoning, China[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2003,77(2):148-154.
APA	You, HL,Ji, Q,Li, JL,&Li, YX.(2003).A new hadrosauroid dinosaur from the mid-Cretaceous of Liaoning, China.ACTA GEOLOGICA SINICA-ENGLISH EDITION,77(2),148-154.
MLA	You, HL,et al."A new hadrosauroid dinosaur from the mid-Cretaceous of Liaoning, China".ACTA GEOLOGICA SINICA-ENGLISH EDITION 77.2(2003):148-154.