A new transitional therizinosaurian theropod from the Early Cretaceous Jehol Biota of China

doi:10.1038/s41598-019-41560-z

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	A new transitional therizinosaurian theropod from the Early Cretaceous Jehol Biota of China
	Yao, Xi 1,3; Liao, Chun-Chi 1,3; Sullivan, Corwin 4,5; Xu, Xing1,2
	2019-03-22
发表期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
卷号	9 期号:1 页码:12
摘要	Therizinosaurian theropods evolved many highly specialized osteological features in association with their bulky proportions, which were unusual in the context of the generally gracile Theropoda. Here we report a new therizinosaur, Lingyuanosaurus sihedangensis gen. et sp. nov., based on a specimen recovered from the Lower Cretaceous Jehol Group of Lingyuan, Liaoning Province, China, which displays a combination of plesiomorphic and derived features. Most notably, the specimen is characterized by posterior dorsal vertebrae with a complex and unusual laminar structure; an ilium with a highly dorsoventrally expanded preacetabular process showing only slight lateral flaring of the ventral margin, a strongly anterodorsally inclined iliac blade, a small postacetabular process with a strongly concave dorsal margin, and a relatively robust pubic peduncle with a posteroventrally facing distal articular surface; a straight and robust femur with a small lesser trochanter; and a tibia that is longer than the femur. Phylogenetic analysis places Lingyuanosaurus in an intermediate position within Therizinosauria, i.e., between the early-branching therizinosaurs such as Falcarius, Jianchangosaurus, and Beipiaosaurus and the late-branching ones such as Alxasaurus and Therizinosaurus. This new therizinosaur sheds additional light on the evolution of major therizinosaurian characteristics, including particularly the distinctive pelvic girdle and hindlimb morphology seen in this group.
DOI	10.1038/s41598-019-41560-z
关键词[WOS]	DINOSAURIA THEROPODA ; YIXIAN ; AGE
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[41120124002] ; National Natural Science Foundation of China[91514302] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB18030504] ; Natural Sciences and Engineering Research Council of Canada[RGPIN-2017-06246] ; University of Alberta start-up funds
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000461997600009
出版者	NATURE PUBLISHING GROUP
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/9535
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Xu, Xing
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 2.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Univ Alberta, Dept Biol Sci, Edmonton, AB, Canada 5.Philip J Currie Dinosaur Museum, Wembley, AB, Canada
推荐引用方式 GB/T 7714	Yao, Xi,Liao, Chun-Chi,Sullivan, Corwin,et al. A new transitional therizinosaurian theropod from the Early Cretaceous Jehol Biota of China[J]. SCIENTIFIC REPORTS,2019,9(1):12.
APA	Yao, Xi,Liao, Chun-Chi,Sullivan, Corwin,&Xu, Xing.(2019).A new transitional therizinosaurian theropod from the Early Cretaceous Jehol Biota of China.SCIENTIFIC REPORTS,9(1),12.
MLA	Yao, Xi,et al."A new transitional therizinosaurian theropod from the Early Cretaceous Jehol Biota of China".SCIENTIFIC REPORTS 9.1(2019):12.

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