中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
The evolution of the modern avian digestive system: insights from paravian fossils from the Yanliao and Jehol biotas

文献类型:期刊论文

作者O'Connor, Jingmai K.1,2; Zhou, Zhonghe1,2
刊名PALAEONTOLOGY
出版日期2020
卷号63期号:1页码:13-27
ISSN号0031-0239
关键词Mesozoic Paraves stem Aves Jehol Biota direct evidence of diet stomach contents avian digestive system
DOI10.1111/pala.12453
通讯作者O'Connor, Jingmai K.(jingmai@ivpp.ac.cn)
英文摘要The avian digestive system, like other aspects of avian biology, is highly modified relative to other reptiles. Together these modifications have imparted the great success of Neornithes, the most diverse clade of amniotes alive today. It is important to understand when and how aspects of the modern avian digestive system evolved among neornithine ancestors in order to elucidate the evolutionary success of this important clade and to understand the biology of stem birds and their closest dinosaurian relatives: Mesozoic Paraves. Although direct preservation of the soft tissue of the digestive system has not yet been reported, ingested remains and their anatomical location preserved in articulated fossils hint at the structure of the digestive system and its abilities. Almost all data concerning direct evidence of diet in Paraves comes from either the Upper Jurassic Yanliao Biota or the Lower Cretaceous Jehol Biota, both of which are known from deposits in north-eastern China. Here, the sum of the data gleaned from the thousands of exceptionally well-preserved fossils of paravians is interpreted with regards to the structure and evolution of the highly modified avian digestive system and feeding apparatus. This information suggests intrinsic differences between closely related stem lineages implying either strong homoplasy or that diet in each lineage of non-ornithuromorph birds was highly specialized. Regardless, modern digestive capabilities appear to be limited to the Ornithuromorpha, although the complete set of derived feeding related characters is restricted to the Neornithes.
WOS关键词THEROPOD DINOSAUR ; AVES ORNITHOTHORACES ; ORNITHURINE BIRD ; YIXIAN FORMATION ; ORNITHUROMORPH ; CHINA ; GASTROLITHS ; DIET ; VERTEBRATES ; LINEAGE
资助项目National Natural Science Foundation of China[41688103]
WOS研究方向Paleontology
语种英语
出版者WILEY
WOS记录号WOS:000494528100001
资助机构National Natural Science Foundation of China
源URL[http://119.78.100.205/handle/311034/18007]  
专题中国科学院古脊椎动物与古人类研究所
通讯作者O'Connor, Jingmai K.
作者单位1.CAS Ctr Excellence Life & Paleoenvironm, Beijing 10010, Peoples R China
2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut Human Origins, Beijing 10010, Peoples R China
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O'Connor, Jingmai K.,Zhou, Zhonghe. The evolution of the modern avian digestive system: insights from paravian fossils from the Yanliao and Jehol biotas[J]. PALAEONTOLOGY,2020,63(1):13-27.
APA O'Connor, Jingmai K.,&Zhou, Zhonghe.(2020).The evolution of the modern avian digestive system: insights from paravian fossils from the Yanliao and Jehol biotas.PALAEONTOLOGY,63(1),13-27.
MLA O'Connor, Jingmai K.,et al."The evolution of the modern avian digestive system: insights from paravian fossils from the Yanliao and Jehol biotas".PALAEONTOLOGY 63.1(2020):13-27.

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来源:古脊椎动物与古人类研究所

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