| Fossil evidence of avian crops from the Early Cretaceous of China | |
Zheng, Xiaoting2,3; Martin, Larry D.4; Zhou, Zhonghe1 ; Burnham, David A.4; Zhang, Fucheng1; Miao, Desui4
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| 2011-09-20 | |
| 发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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| 卷号 | 108期号:38页码:15904-15907 |
| 文章类型 | Article |
| 摘要 | The crop is characteristic of seed-eating birds today, yet little is known about its early history despite remarkable discoveries of many Mesozoic seed-eating birds in the past decade. Here we report the discovery of some early fossil evidence for the presence of a crop in birds. Two Early Cretaceous birds, the basal ornithurine Hongshanornis and a basal avian Sapeornis, demonstrate that an essentially modern avian digestive system formed early in avian evolution. The discovery of a crop in two phylogenetically remote lineages of Early Cretaceous birds and its absence in most intervening forms indicates that it was independently acquired as a specialized seed-eating adaptation. Finally, the reduction or loss of teeth in the forms showing seed-filled crops suggests that granivory was possibly one of the factors that resulted in the reduction of teeth in early birds. |
| 关键词 | Paleornithology Feeding |
| WOS标题词 | Science & Technology |
| 学科领域 | 古脊椎动物及地层学 |
| 关键词[WOS] | ORNITHURINE BIRD ; THEROPOD ; AVES |
| 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:000295030000050 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/2178 |
| 专题 | 古低等脊椎动物研究室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Evolutionary Systemat Vertebrates, Beijing 100044, Peoples R China 2.Linyi Univ, Inst Geol & Paleontol, Linyi 276000, Shandong, Peoples R China 3.Shandong Tianyu Museum Nat, Pingyi 273300, Shandong, Peoples R China 4.Univ Kansas, Biodivers Inst, Div Vertebrate Paleontol, Lawrence, KS 66045 USA |
| 推荐引用方式 GB/T 7714 | Zheng, Xiaoting,Martin, Larry D.,Zhou, Zhonghe,et al. Fossil evidence of avian crops from the Early Cretaceous of China[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2011,108(38):15904-15907. |
| APA | Zheng, Xiaoting,Martin, Larry D.,Zhou, Zhonghe,Burnham, David A.,Zhang, Fucheng,&Miao, Desui.(2011).Fossil evidence of avian crops from the Early Cretaceous of China.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,108(38),15904-15907. |
| MLA | Zheng, Xiaoting,et al."Fossil evidence of avian crops from the Early Cretaceous of China".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 108.38(2011):15904-15907. |
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