A bizarre theropod from the Early Cretaceous of Japan highlighting mosaic evolution among coelurosaurians

doi:10.1038/srep20478

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	A bizarre theropod from the Early Cretaceous of Japan highlighting mosaic evolution among coelurosaurians
	Azuma, Yoichi 1,2; Xu, Xing 3; Shibata, Masateru 1,2; Kawabe, Soichiro 4; Miyata, Kazunori 1,2; Imai, Takuya 2
刊名	SCIENTIFIC REPORTS
	2016-02-23
卷号	6
DOI	10.1038/srep20478
文献子类	Article
英文摘要	Our understanding of coelurosaurian evolution, particularly of bird origins, has been greatly improved, mainly due to numerous recently discovered fossils worldwide. Nearly all these discoveries are referable to the previously known coelurosaurian subgroups. Here, we report a new theropod, Fukuivenator paradoxus, gen. et sp. nov., based on a nearly complete specimen from the Lower Cretaceous Kitadani Formation of the Tetori Group, Fukui, Japan. While Fukuivenator possesses a large number of morphological features unknown in any other theropod, it has a combination of primitive and derived features seen in different theropod subgroups, notably dromaeosaurid dinosaurs. Computed-tomography data indicate that Fukuivenator possesses inner ears whose morphology is intermediate between those of birds and non-avian dinosaurs. Our phylogenetic analysis recovers Fukuivenator as a basally branching maniraptoran theropod, yet is unable to refer it to any known coelurosaurian subgroups. The discovery of Fukuivenator considerably increases the morphological disparity of coelurosaurian dinosaurs and highlights the high levels of homoplasy in coelurosaurian evolution.
WOS关键词	FILAMENTOUS INTEGUMENT ; KITADANI FORMATION ; FUKUI PREFECTURE ; DINOSAUR ; CHINA ; VELOCIRAPTOR ; ORNITHOPODA ; BRAINCASE ; AMERICA
WOS研究方向	Science & Technology - Other Topics
语种	英语
WOS记录号	WOS:000370624100001
资助机构	Fukui Prefectural Government ; Fukui Prefectural University ; National Natural Science Foundation of China(41120124002)
内容类型	期刊论文
源URL	[http://124.16.247.212/handle/311034/7136]
专题	古脊椎动物与古人类研究所_图书馆1
作者单位	1.Fukui Prefectural Univ, Inst Dinosaur Res, 4-1-1 Kenjojima, Fukui 9101195, Japan 2.Fukui Prefectural Dinosaur Museum, 51-11 Terao, Fukui 9118601, Japan 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 4.Gifu Prefectural Museum, 1989 Oyana, Gifu 5013941, Japan
推荐引用方式 GB/T 7714	Azuma, Yoichi,Xu, Xing,Shibata, Masateru,et al. A bizarre theropod from the Early Cretaceous of Japan highlighting mosaic evolution among coelurosaurians[J]. SCIENTIFIC REPORTS,2016,6.
APA	Azuma, Yoichi,Xu, Xing,Shibata, Masateru,Kawabe, Soichiro,Miyata, Kazunori,&Imai, Takuya.(2016).A bizarre theropod from the Early Cretaceous of Japan highlighting mosaic evolution among coelurosaurians.SCIENTIFIC REPORTS,6.
MLA	Azuma, Yoichi,et al."A bizarre theropod from the Early Cretaceous of Japan highlighting mosaic evolution among coelurosaurians".SCIENTIFIC REPORTS 6(2016).