KMS Institute of Vertebrate Paleontology and Paleoanthropology
| A large-sized basal ankylopollexian from East Asia, shedding light on early biogeographic history of Iguanodontia | |
Xu, Xing1 ; Tan, Qingwei2; Gao, Yilong3; Bao, Zhiqiang3; Yin, Zhigang3; Guo, Bin3; Wang, Junyou4; Tan, Lin2; Zhang, Yuguang5; Xing, Hai5
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| 2018-05-15 | |
| 发表期刊 | SCIENCE BULLETIN
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| ISSN | 2095-9273 |
| 卷号 | 63期号:9页码:556-563 |
| 文章类型 | Article |
| 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. |
| 关键词 | Non-hadrosauriform Ankylopollexian Lower Cretaceous Bayingebi Formation Inner Mongolia Intercontinental Dispersal |
| WOS标题词 | Science & Technology |
| DOI | 10.1016/j.scib.2018.03.016 |
| 关键词[WOS] | HADROSAUROID DINOSAUR ; ORNITHISCHIA ; ORNITHOPODA ; DRYOSAURUS ; PYGOSTYLE ; THEROPODA ; CHINA |
| 收录类别 | SCI |
| 语种 | 英语 |
| 项目资助者 | 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) |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| WOS记录号 | WOS:000432524700008 |
| 出版者 | SCIENCE PRESS |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/8395 |
| 专题 | 中科院古脊椎所（2000年以后） |
| 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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