An unusual oviraptorosaurian dinosaur from China

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	An unusual oviraptorosaurian dinosaur from China
	Xu, X ; Cheng, YN ; Wang, XL ; Chang, CH ; Chang, H
	2002-09-19
发表期刊	NATURE
卷号	419 期号:6904 页码:291-293
文章类型	Article
摘要	Oviraptorosaurians are an unusual group of theropod dinosaurs, with highly specialized skulls(1-6). Here we report a new oviraptorosaurian, Incisivosaurus gauthieri, gen. et sp. nov., from the lowest part of the Lower Cretaceous Yixian Formation of China. This oviraptorosaurian displays a number of characters closer to more typical theropods, such as a low skull and toothed jaws, thus greatly reducing the morphological gap between oviraptorosaurs and other theropods(4-11). Incisivosaurus has a pair of premaxillary teeth resembling rodent incisors and small, lanceolate cheek teeth with large wear facets. These dental features were previously unknown among theropods and suggest a herbivorous diet. The new discovery provides a case of convergent evolution and demonstrates that non-avian theropods were much more diverse ecologically than previously suspected.
WOS标题词	Science & Technology
关键词[WOS]	EVOLUTION ; MONGOLIA
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:000178056300043
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/1868
专题	古低等脊椎动物研究室
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Natl Museum Nat Sci, Div Geol, Taichung, Taiwan
推荐引用方式 GB/T 7714	Xu, X,Cheng, YN,Wang, XL,et al. An unusual oviraptorosaurian dinosaur from China[J]. NATURE,2002,419(6904):291-293.
APA	Xu, X,Cheng, YN,Wang, XL,Chang, CH,&Chang, H.(2002).An unusual oviraptorosaurian dinosaur from China.NATURE,419(6904),291-293.
MLA	Xu, X,et al."An unusual oviraptorosaurian dinosaur from China".NATURE 419.6904(2002):291-293.

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