| A New Enantiornithes (Aves) from the Early Cretaceous of China |
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| 作者姓名： | Johan DALS?TT Per G.P. ERICSON and Zhonge ZHOU |
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| 作者单位： | 1 Department of Vertebrate Zoology, Swedish Museum of Natural History, Box 50007, SE-104 05 Stockholm, Sweden; 2 Department of Geological Sciences, Stockholm University, SE-106 91 Stockholm, Sweden; 3 Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China |
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| 基金项目： | The study was financially supported by the Asian–Swedish research partnership programme of the Swedish Research Councile, the Major Basic Research Projects (2006CB806400) of MST of China and the National Natural Science Foundation of China (40121202). |
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| 摘 要： | A new bird from the early Cretaceous Yixian Formation of Liaoning, China is described. This new species, Grabauornis lingyuanensis, shares several synapomorphies with the Enantiornithes. The specimen is relatively well preserved. The skeletal morphology of Grabauornis bears close resemblance to that of other Chinese members of this clade. The brachial index （the ratio between the lengths of humerus and ulna） is 0.95, which is close to the average for enantiornithine birds. It indicates that Grabauornis was a rather good flyer, and the presence of an alula in the wing further testifies to this.
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| 关 键 词： | 早白垩世 鸟类 中国 反鸟 骨骼形态 义县组 新物种 尺骨 |
| 收稿时间： | 2013/10/27 0:00:00 |
| 修稿时间： | 2014/1/10 0:00:00 |
A New Enantiornithes （Aves） from the Early Cretaceous of China |
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| Authors: | Johan DALSATT Per GP ERICSON Zhonge ZHOU |
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| Institution: | P. ERICSON, Zhonge ZHOU( 1. Department of Vertebrate Zoology, Swedish Museum of Natural History, Box 50007, SE-104 05 Stockholm, Sweden; 2. Department of Geological Sciences, Stockholm University, SE-106 91 Stockholm, Sweden; 3. Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China) |
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| Abstract: | A new bird from the early Cretaceous Yixian Formation of Liaoning,China is described.This new species,Grabauornis lingyuanensis,shares several synapomorphies with the Enantiornithes.The specimen is relatively well preserved.The skeletal morphology of Grabauornis bears close resemblance to that of other Chinese members of this clade.The brachial index(the ratio between the lengths of humerus and ulna) is 0.95,which is close to the average for enantiornithine birds.It indicates that Grabauornis was a rather good flyer,and the presence of an alula in the wing further testifies to this. |
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| Keywords: | Enantiornithes Aves Early Cretaceous Yixian Formation Liaoning China |
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