A new enantiornithine (Aves: Ornithothoraces) with completely fused premaxillae from the Early Cretaceous of China

doi:10.1080/14772019.2018.1527403

IVPP-IR > 中科院古脊椎所（2000年以后）

	A new enantiornithine (Aves: Ornithothoraces) with completely fused premaxillae from the Early Cretaceous of China
	Wang, Min 1,2; Zhou, Zhonghe1,2
	2019-08-03
发表期刊	JOURNAL OF SYSTEMATIC PALAEONTOLOGY
ISSN	1477-2019
卷号	17 期号:15 页码:1079-1092
摘要	We report a new small enantiornithine, Shangyang graciles gen. et sp. nov., based on a nearly complete and articulated skeleton from the Lower Cretaceous Jiufotang Formation of Liaoning Province, north-eastern China. Shangyang has premaxillae that are completely fused rostrally as well as along the frontal processes, a previously unrecognized condition in Early Cretaceous birds. As in three other enantiornithine taxa, Shangyang preserves a pair of craniolateral processes in the sternum. Phylogenetic analysis places Shangyang in a relatively derived position within Enantiornithes, suggesting that the craniolateral processes of the sternum evolved independently among some enantiornithine lineages from the condition seen in some basal ornithuromorphs. The craniolateral processes in modern birds provide the insertions of the M. sternocoracoideus that functions in the downstroke, which can also originate from the two cranialmost sternal ribs instead when these processes are absent. The altered origin of this muscle shows that diverse pectoral musculoskeletal modifications took place early in avian history.
关键词	birds Enantiornithes fusion M sternocoracoideus Mesozoic sternum
DOI	10.1080/14772019.2018.1527403
关键词[WOS]	BIRD ; EVOLUTION ; ANATOMY ; INFORMATION ; MORPHOLOGY ; SHOULDER ; INSIGHT ; SUPPORT ; ORIGIN ; SKULL
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41688103] ; National Natural Science Foundation of China[41722202] ; National Natural Science Foundation of China[41502002]
WOS研究方向	Evolutionary Biology ; Paleontology
WOS类目	Evolutionary Biology ; Paleontology
WOS记录号	WOS:000472108800003
出版者	TAYLOR & FRANCIS LTD
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/10026
专题	中科院古脊椎所（2000年以后）
通讯作者	Wang, Min
作者单位	1.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Wang, Min,Zhou, Zhonghe. A new enantiornithine (Aves: Ornithothoraces) with completely fused premaxillae from the Early Cretaceous of China[J]. JOURNAL OF SYSTEMATIC PALAEONTOLOGY,2019,17(15):1079-1092.
APA	Wang, Min,&Zhou, Zhonghe.(2019).A new enantiornithine (Aves: Ornithothoraces) with completely fused premaxillae from the Early Cretaceous of China.JOURNAL OF SYSTEMATIC PALAEONTOLOGY,17(15),1079-1092.
MLA	Wang, Min,et al."A new enantiornithine (Aves: Ornithothoraces) with completely fused premaxillae from the Early Cretaceous of China".JOURNAL OF SYSTEMATIC PALAEONTOLOGY 17.15(2019):1079-1092.

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