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First species of Enantiornithes from Sihedang elucidates skeletal development in Early Cretaceous enantiornithines
Hu, Han1,2; O'Connor, Jingmai K.1
2017
发表期刊JOURNAL OF SYSTEMATIC PALAEONTOLOGY
卷号15期号:11页码:909-926
文章类型Article
摘要

The Sihedang locality of the Lower Cretaceous Yixian Formation is the only recognized ornithuromorph-dominated locality in the Jehol Group of north-eastern China. Here we report on the first enantiornithine from this locality and erect a new taxon Monoenantiornis sihedangia gen. et sp. nov. The holotype and only specimen preserves a rare ontogenetic stage in which the intermedium is ossified but free from the other proximal tarsals and the tibia, consistent with the pattern of ossification that occurs in neornithines. In order to explore the pattern of skeletal development in the enantiornithines, we select several published specimens inferred to represent different ontogenetic stages and document their degree of fusion in five key compound bones and the sterna. This provides a preliminary hypothesis for the sequence in which compound bones form in Early Cretaceous enantiornithines. From this hypothesis, most known specimens can be categorized into four major ontogenetic stages: all the compound bones unfused; synsacrum and pygostyle fused; tarsals fused; tibiotarsus and carpometacarpus formed.http://zoobank.org/urn:lsid:zoobank.org:pub:347485CA-87E6-4834-BEB5-687B6798644E

关键词Aves Mesozoic Enantiornithes Ontogeny Skeletal Development
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.1080/14772019.2016.1246111
关键词[WOS]Aves Ornithothoraces ; Jehol Biota ; Subadult Specimen ; Northern China ; Bird ; Evolution ; Archaeopteryx ; Information ; Skull ; Diversification
收录类别SCI
语种英语
项目资助者National Basic Research Program of China 973 Program(2012CB821906) ; National Natural Science Foundation of China(91514302)
WOS研究方向Evolutionary Biology ; Paleontology
WOS类目Evolutionary Biology ; Paleontology
WOS记录号WOS:000405742600002
引用统计
被引频次:25[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://119.78.100.205/handle/311034/8052
专题中科院古脊椎所(2000年以后)
作者单位1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, 142 Xizhimenwai St, Beijing 100044, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
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Hu, Han,O'Connor, Jingmai K.. First species of Enantiornithes from Sihedang elucidates skeletal development in Early Cretaceous enantiornithines[J]. JOURNAL OF SYSTEMATIC PALAEONTOLOGY,2017,15(11):909-926.
APA Hu, Han,&O'Connor, Jingmai K..(2017).First species of Enantiornithes from Sihedang elucidates skeletal development in Early Cretaceous enantiornithines.JOURNAL OF SYSTEMATIC PALAEONTOLOGY,15(11),909-926.
MLA Hu, Han,et al."First species of Enantiornithes from Sihedang elucidates skeletal development in Early Cretaceous enantiornithines".JOURNAL OF SYSTEMATIC PALAEONTOLOGY 15.11(2017):909-926.
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