| A gigantic feathered dinosaur from the Lower Cretaceous of China | |
| Xu, Xing; Wang, Kebai; Zhang, Ke; Ma, Qingyu; Xing, Lida; Sullivan, Corwin; Hu, Dongyu; Cheng, Shuqing; Wang, Shuo; xingxu@vip.sina.com | |
| 2012 | |
| 关键词 | Tyrannosauroid Dinosaur North-america Theropoda England Age |
| 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. |
| 页数 | 92—95 |
| URL | 查看原文 |
| 文献类型 | 学位论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/4301 |
| 专题 | 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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| A gigantic feathered（1749KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 请求全文 | |
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