KMS Institute of Vertebrate Paleontology and Paleoanthropology
| A Fish-Eating Enantiornithine Bird from the Early Cretaceous of China Provides Evidence of Modern Avian Digestive Features | |
Wang, Min; Zhou, Zhonghe ; Sullivan, Corwin
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| 2016-05-09 | |
| 发表期刊 | CURRENT BIOLOGY
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| 卷号 | 26期号:9页码:1170-1176 |
| 文章类型 | Article |
| 摘要 | Modern birds differ from their theropod ancestors in lacking teeth and heavily constructed bony jaws, having evolved a lightly built beak and a specialized digestive system capable of processing unmasticated food [1, 2]. Enantiornithes, the most successful clade of Mesozoic birds, represents the sister group of the Ornithuromorpha, which gave rise to living birds [3]. Nevertheless, the feeding habits of enantiornithines have remained unknown because of a lack of fossil evidence. In contrast, exceptionally preserved fossils reveal that derived avian features were present in the digestive systems of some non-enantiornithine birds with ages exceeding 125 million years [4, 5]. Here, we report a new piscivorous enantiornithine from the Early Cretaceous Jehol Biota of China. This specimen preserves a gastric pellet that includes fish bones. The new enantiornithine, like many modern piscivores and raptors, seems to have swallowed its prey whole and regurgitated indigestible materials such as bones, invertebrate exoskeletons, scales, and feathers. This fossil represents the oldest unambiguous record of an avian gastric pellet and the only such record from the Mesozoic. The pellet points to a fish diet and suggests that the alimentary tract of the new enantiornithine resembled that of extant avians in having efficient antiperistalsis and a two-chambered stomach with a muscular gizzard capable of compacting indigestible matter into a cohesive pellet. The inferred occurrence of these advanced features in an enantiornithine implies that they were widespread in Cretaceous birds and likely facilitated dietary diversification within both Enantiornithes and Ornithuromorpha. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| DOI | 10.1016/j.cub.2016.02.055 |
| 关键词[WOS] | JEHOL BIOTA ; DIET ; DINOSAURS ; VERTEBRATES ; COPROLITES ; SPECIMEN ; TEETH |
| 收录类别 | SCI |
| 语种 | 英语 |
| 项目资助者 | National Natural Science Foundation of China(41502002 ; Youth Innovation Promotion Association (CAS)(2016073) ; National Basic Research Program of China (973 Program)(2012CB821906) ; 91514302) |
| WOS研究方向 | Biochemistry & Molecular Biology ; Cell Biology |
| WOS类目 | Biochemistry & Molecular Biology ; Cell Biology |
| WOS记录号 | WOS:000375413700022 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/7112 |
| 专题 | 中科院古脊椎所（2000年以后） 古低等脊椎动物研究室 |
| 作者单位 | Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, 142 Xizhimenwai St, Beijing 100044, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Min,Zhou, Zhonghe,Sullivan, Corwin. A Fish-Eating Enantiornithine Bird from the Early Cretaceous of China Provides Evidence of Modern Avian Digestive Features[J]. CURRENT BIOLOGY,2016,26(9):1170-1176. |
| APA | Wang, Min,Zhou, Zhonghe,&Sullivan, Corwin.(2016).A Fish-Eating Enantiornithine Bird from the Early Cretaceous of China Provides Evidence of Modern Avian Digestive Features.CURRENT BIOLOGY,26(9),1170-1176. |
| MLA | Wang, Min,et al."A Fish-Eating Enantiornithine Bird from the Early Cretaceous of China Provides Evidence of Modern Avian Digestive Features".CURRENT BIOLOGY 26.9(2016):1170-1176. |
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| A Fish-Eating Enanti（3456KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
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