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题名	A gigantic feathered dinosaur from the Lower Cretaceous of China
作者	Xu, Xing; Wang, Kebai; Zhang, Ke; Ma, Qingyu; Xing, Lida; Sullivan, Corwin; Hu, Dongyu; Cheng, Shuqing; Wang, Shuo; xingxu@vip.sina.com
答辩日期	2012
关键词	Tyrannosauroid Dinosaur North-america Theropoda England Age
英文摘要	Numerous feathered dinosaur specimens have recently been recovered from the Middle-Upper Jurassic and Lower Cretaceous deposits of northeastern China, but most of them represent small animals(1). Here we report the discovery of a gigantic new basal tyrannosauroid, Yutyrannus huali gen. et sp. nov., based on three nearly complete skeletons representing two distinct ontogenetic stages from the Lower Cretaceous Yixian Formation of Liaoning Province, China. Y. huali shares some features, particularly of the cranium, with derived tyrannosauroids(2,3), but is similar to other basal tyrannosauroids(4-12) in possessing a three-fingered manus and a typical theropod pes. Morphometric analysis suggests that Y. huali differed from tyrannosaurids in its growth strategy(13,14). Most significantly, Y. huali bears long filamentous feathers, thus providing direct evidence for the presence of extensively feathered gigantic dinosaurs and offering new insights into early feather evolution.
公开日期	2013-11-27
页码	92—95
URL标识	查看原文
出处	NATURE
内容类型	学位论文
源URL	[http://119.78.100.205/handle/311034/4302]
专题	古脊椎动物与古人类研究所_古低等脊椎动物研究室
通讯作者	xingxu@vip.sina.com
推荐引用方式 GB/T 7714	Xu, Xing,Wang, Kebai,Zhang, Ke,et al. A gigantic feathered dinosaur from the Lower Cretaceous of China[D]. 2012.

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