Decoupling the skull and skeleton in a Cretaceous bird with unique appendicular morphologies

doi:10.1038/s41559-022-01921-w

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	Decoupling the skull and skeleton in a Cretaceous bird with unique appendicular morphologies
	Li, Zhiheng1,2 ; Wang, Min1,2 ; Stidham, Thomas A. A.1,2,3; Zhou, Zhonghe1,2
	2023-01-02
发表期刊	NATURE ECOLOGY & EVOLUTION
ISSN	2397-334X
卷号	7 期号:0 页码:20-31
摘要	The Cretaceous is a critical time interval that encompasses explosive diversifications of terrestrial vertebrates, particularly the period when the earliest-branching birds, after divergence from their theropod ancestors, evolved the characteristic avian Bauplan that led eventually to their global radiation. This early phylogenetic diversity is overwhelmed by the Ornithothoraces, consisting of the Enantiornithes and Ornithuromorpha, whose members evolved key derived features of crown birds. This disparity consequently circumscribes a large morphological gap between these derived clades and the oldest bird Archaeopteryx. The non-ornithothoracine pygostylians, with an intermediate phylogenetic position, are key to deciphering those evolutionary transformations, but progress in their study has been hampered by the limited diversity of known fossils. Here we report an Early Cetaceous non-ornithothoracine pygostylian, Cratonavis zhui gen. et sp. nov., that exhibits a unique combination of a non-avialan dinosaurian akinetic skull with an avialan post-cranial skeleton, revealing the key role of evolutionary mosaicism in early bird diversification. The unusually elongated scapular and metatarsal one preserved in Cratonavis highlights a breadth of skeletal plasticity, stemming from their distinct developmental modules and selection for possibly raptorial behaviour. Mapped changes in these two elements across theropod phylogeny demonstrate clade-specific evolutionary lability.
DOI	10.1038/s41559-022-01921-w
关键词[WOS]	R PACKAGE ; CRANIAL KINESIS ; EVOLUTION ; ARCHAEOPTERYX ; THEROPOD ; PATTERNS ; ANATOMY ; MUSCLES ; ORIGIN ; INFORMATION
收录类别	SCI
语种	英语
资助项目	Key Research Program of Frontier Sciences, CAS[ZDBS-LY-DQC002] ; National Natural Science Foundation of China[42288201] ; Tencent Foundation[XPLORER PRIZE]
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目	Ecology ; Evolutionary Biology
WOS记录号	WOS:000906657500002
出版者	NATURE PORTFOLIO
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/22198
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Wang, Min
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Li, Zhiheng,Wang, Min,Stidham, Thomas A. A.,et al. Decoupling the skull and skeleton in a Cretaceous bird with unique appendicular morphologies[J]. NATURE ECOLOGY & EVOLUTION,2023,7(0):20-31.
APA	Li, Zhiheng,Wang, Min,Stidham, Thomas A. A.,&Zhou, Zhonghe.(2023).Decoupling the skull and skeleton in a Cretaceous bird with unique appendicular morphologies.NATURE ECOLOGY & EVOLUTION,7(0),20-31.
MLA	Li, Zhiheng,et al."Decoupling the skull and skeleton in a Cretaceous bird with unique appendicular morphologies".NATURE ECOLOGY & EVOLUTION 7.0(2023):20-31.

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