KMS Institute of Vertebrate Paleontology and Paleoanthropology
| A new feathered maniraptoran dinosaur fossil that fills a morphological gap in avian origin | |
Xu Xing1 ; Zhao Qi1; Norell, Mark2; Sullivan, Corwin1; Hone, David1; Erickson, Gregory2,3; Wang XiaoLin1; Han FengLu1,4; Guo Yu1,4; xingxu@vip.sina.com
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| 2009-02-01 | |
| 发表期刊 | CHINESE SCIENCE BULLETIN
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| ISSN | 1001-6538 |
| 卷号 | 54期号:3页码:430-435 |
| 文章类型 | Article |
| 摘要 | Recent fossil discoveries have substantially reduced the morphological gap between non-avian and avian dinosaurs, yet avians including Archaeopteryx differ from non-avian theropods in their limb proportions. In particular, avians have proportionally longer and more robust forelimbs that are capable of supporting a large aerodynamic surface. Here we report on a new maniraptoran dinosaur, Anchiornis huxleyi gen. et sp. nov., based on a specimen collected from lacustrine deposits of uncertain age in western Liaoning, China. With an estimated mass of 110 grams, Anchiornis is the smallest known non-avian theropod dinosaur. It exhibits some wrist features indicative of high mobility, presaging the wing-folding mechanisms seen in more derived birds and suggesting rapid evolution of the carpus. Otherwise, Anchiornis is intermediate in general morphology between non-avian and avian dinosaurs, particularly with regard to relative forelimb length and thickness, and represents a transitional step toward the avian condition. In contrast with some recent comprehensive phylogenetic analyses, our phylogenetic analysis incorporates subtle morphological variations and recovers a conventional result supporting the monophyly of Avialae. |
| 关键词 | Early Cretaceous Maniraptoran Theropod Coelurosaurian Phylogeny Wrist Evolution Avian Origin |
| WOS标题词 | Science & Technology |
| URL | 查看原文 |
| 关键词[WOS] | THEROPOD ; EVOLUTION ; FLIGHT |
| 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:000263357000015 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/4759 |
| 专题 | 中科院古脊椎所（2000年以后） 古低等脊椎动物研究室 |
| 通讯作者 | xingxu@vip.sina.com |
| 作者单位 | 1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Amer Museum Nat Hist, New York, NY 10024 USA 3.Florida State Univ, Dept Biol Sci, Tallahassee, FL 32306 USA 4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu Xing,Zhao Qi,Norell, Mark,et al. A new feathered maniraptoran dinosaur fossil that fills a morphological gap in avian origin[J]. CHINESE SCIENCE BULLETIN,2009,54(3):430-435. |
| APA | Xu Xing.,Zhao Qi.,Norell, Mark.,Sullivan, Corwin.,Hone, David.,...&xingxu@vip.sina.com.(2009).A new feathered maniraptoran dinosaur fossil that fills a morphological gap in avian origin.CHINESE SCIENCE BULLETIN,54(3),430-435. |
| MLA | Xu Xing,et al."A new feathered maniraptoran dinosaur fossil that fills a morphological gap in avian origin".CHINESE SCIENCE BULLETIN 54.3(2009):430-435. |
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