Insight into the early evolution of the avian sternum from juvenile enantiornithines

IVPP-IR > 中科院古脊椎所（2000年以后）

	Insight into the early evolution of the avian sternum from juvenile enantiornithines
	Zheng, Xiaoting 1,2; Wang, Xiaoli 1; O'Connor, Jingmai 3; Zhou, Zhonghe3
	2012-10-01
发表期刊	NATURE COMMUNICATIONS
卷号	3
文章类型	Article
摘要	The sternum is one of the most important and characteristic skeletal elements in living birds, highly adapted for flight and showing a diverse range of morphologies. New exceptional material of young juvenile specimens from the Early Cretaceous Jehol Group in northeastern China reveals the unique sequence of development in the sternum of Enantiornithes, the dominant clade of Cretaceous birds. We recognize six ossifications that together form the sternum, three of which were previously unknown. Here we show that although basal living birds apparently have retained the dinosaurian condition in which the sternum develops from a bilateral pair of ossifications ( present in paravian dinosaurs and basal birds), the enantiornithine sternal body primarily develops from two unilateral proximo-distally arranged ossifications. This indicates that although superficially similar, the sternum formed very differently in enantiornithines and ornithuromorphs, suggesting that several ornithothoracine sternal features may represent parallelism. This highlights the importance of ontogenetic studies for understanding homology and the evolution of skeletal features in palaeontology.
WOS标题词	Science & Technology
关键词[WOS]	OSSIFICATION SEQUENCE ; BONE MICROSTRUCTURE ; BIRDS ; CHINA ; PHYLOGENY ; SKELETON ; THEROPODA ; ANATOMY ; GROWTH ; FOWL
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:000313514100026
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7204
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	1.Linyi Univ, Inst Geol & Paleontol, Linyi 276000, Peoples R China 2.Tianyu Nat Hist Museum Shandong, Pingyi 273300, Peoples R China 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Evolutionary Systemat Vertebrates, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Xiaoting,Wang, Xiaoli,O'Connor, Jingmai,et al. Insight into the early evolution of the avian sternum from juvenile enantiornithines[J]. NATURE COMMUNICATIONS,2012,3.
APA	Zheng, Xiaoting,Wang, Xiaoli,O'Connor, Jingmai,&Zhou, Zhonghe.(2012).Insight into the early evolution of the avian sternum from juvenile enantiornithines.NATURE COMMUNICATIONS,3.
MLA	Zheng, Xiaoting,et al."Insight into the early evolution of the avian sternum from juvenile enantiornithines".NATURE COMMUNICATIONS 3(2012).

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
P0201301154406328263（984KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览下载