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A large-sized basal ankylopollexian from East Asia, shedding light on early biogeographic history of Iguanodontia

文献类型：期刊论文

作者Xu, Xing1; Tan, Qingwei2; Gao, Yilong3; Bao, Zhiqiang3; Yin, Zhigang3; Guo, Bin3; Wang, Junyou4; Tan, Lin2; Zhang, Yuguang5; Xing, Hai5
刊名SCIENCE BULLETIN
出版日期2018-05-15
卷号63期号:9页码:556-563
ISSN号2095-9273
关键词Non-hadrosauriform Ankylopollexian Lower Cretaceous Bayingebi Formation Inner Mongolia Intercontinental Dispersal
DOI10.1016/j.scib.2018.03.016
文献子类Article
英文摘要A presumably mostly quadrupedal ankylopollexian iguanodontian, Bayannurosaurus perfectus gen. et sp. nov., is reported here, and is represented by an excellently well-preserved skeleton from the Lower Cretaceous Bayingebi Formation of Inner Mongolia, China. The diagnosis of the taxon includes several autapomorphies, notably a dorsally directed, strap-like posterodorsal process of the jugal and a horizontally oriented preacetabular process of the ilium. The nearly complete caudal series retains eight posterior-most caudals with procoelous, trapezoidal centra in dorsal view, and the last three caudals are fully fused. The discovery of B. perfectus opens a critical new window on the early evolution and intercontinental dispersal of Iguanodontia. The skeleton displays a transitional morphology between non-hadrosauriform ankylopollexians and Hadrosauriformes. A phylogenetic analysis indicates that Bayannurosaurus is positioned higher on the tree than Hypselospinus, but below Ouranosaurus just outside of Hadrosauriformes. The tree topology of Iguanodontia with temporal and spatial constraints reveals a possible biogeographic scenario supported by the statistical dispersal-vicariance analysis: around the J/K boundary, non-hadrosauriform ankylopollexians experienced multiple dispersal events from Europe to Asia, accompanying the coeval fall of the global sea level. (C) 2018 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.
WOS关键词HADROSAUROID DINOSAUR ; ORNITHISCHIA ; ORNITHOPODA ; DRYOSAURUS ; PYGOSTYLE ; THEROPODA ; CHINA
WOS研究方向Science & Technology - Other Topics
语种英语
出版者SCIENCE PRESS
WOS记录号WOS:000432524700008
资助机构Beijing Natural Science Foundation(5174032) ; National Natural Science Foundation of China(41688103 ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB18030504) ; Youth Backbone Training Plan(201601) ; Overseas Talents Attracting Program of the Beijing Academy of Science and Technology(OTP-2018-001) ; Innovative Team Program of the Beijing Academy of Science and Technology(IG201705N) ; Beijing Millions of Talents Project in the New Century ; Department of Land and Resources of Inner Mongolia ; 41120124002 ; 91514302 ; 41602006)
源URL[http://119.78.100.205/handle/311034/8395]  
专题古脊椎动物与古人类研究所_图书馆1
通讯作者Xu, Xing; Xing, Hai
作者单位1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Evolutionary Systemat Vertebrates, Beijing 100044, Peoples R China
2.Long Hao Inst Geol & Paleontol, Hohhot 010010, Peoples R China
3.Bur Land & Resources Bayannur, Bayannur 015000, Peoples R China
4.Inner Mongolia Museum Nat Hist, Hohhot 010020, Peoples R China
5.Beijing Acad Sci & Technol, Beijing Museum Nat Hist, Beijing 100050, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Xing,Tan, Qingwei,Gao, Yilong,et al. A large-sized basal ankylopollexian from East Asia, shedding light on early biogeographic history of Iguanodontia[J]. SCIENCE BULLETIN,2018,63(9):556-563.
APA Xu, Xing.,Tan, Qingwei.,Gao, Yilong.,Bao, Zhiqiang.,Yin, Zhigang.,...&Xing, Hai.(2018).A large-sized basal ankylopollexian from East Asia, shedding light on early biogeographic history of Iguanodontia.SCIENCE BULLETIN,63(9),556-563.
MLA Xu, Xing,et al."A large-sized basal ankylopollexian from East Asia, shedding light on early biogeographic history of Iguanodontia".SCIENCE BULLETIN 63.9(2018):556-563.

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