A therizinosauroid dinosaur with integumentary structures from China

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	A therizinosauroid dinosaur with integumentary structures from China
	Xu, X ; Tang, ZL ; Wang, XL
	1999-05-27
发表期刊	NATURE
卷号	399 期号:6734 页码:350-354
文章类型	Article
摘要	Therizinosauroidea ('segnosaurs') are little-known group of Asian dinosaurs with an unusual combination of features that, until recently, obscured their evolutionary relationships. Suggested affinities include Ornithischia(1), Sauroyodomorpha(2,3), Theropoda(4-11) and Saurischia sedis mutabilis(12). Here,ve describe a new therizinosauroid from the Yixian Formation (Early Cretaceous, Liaoning, China)(13). This new taxon provides fresh evidence that therizinosauroids are nested within the coelurosaurian theropods(8-11). Our analysis suggests that several specialized therizinosauroid characters, such as the Sauropodomorpha-like tetradactyl pes(1,2), evolved independently, within this group. Most interestingly, this new dinosaur has integumentary filaments as in Sinosauropteryx(14,15). This indicates that such feather-like structures may have a broad distribution among non-avian theropods, and supports the hypothesis that the filamentous integumentary structures may be homologous to the feathers of birds(14,15).
WOS标题词	Science & Technology
关键词[WOS]	THEROPOD
收录类别	SCI
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000080547800058
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/2064
专题	古低等脊椎动物研究室
作者单位	1.Acad Sinica, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Changchun Univ Sci & Technol, Museum Nat Hist, Changchun 130026, Peoples R China
推荐引用方式 GB/T 7714	Xu, X,Tang, ZL,Wang, XL. A therizinosauroid dinosaur with integumentary structures from China[J]. NATURE,1999,399(6734):350-354.
APA	Xu, X,Tang, ZL,&Wang, XL.(1999).A therizinosauroid dinosaur with integumentary structures from China.NATURE,399(6734),350-354.
MLA	Xu, X,et al."A therizinosauroid dinosaur with integumentary structures from China".NATURE 399.6734(1999):350-354.

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