KMS Institute of Vertebrate Paleontology and Paleoanthropology
| The earliest-known duck-billed dinosaur from deposits of late Early Cretaceous age in northwest China and hadrosaur evolution | |
You, HL ; Luo, ZX; Shubin, NH; Witmer, LM; Tang, ZL; Tang, F; You, HL (reprint author), Chinese Acad Geol Sci, Inst Geol, Baiwanzhuang Rd 26, Beijing 100037, Peoples R China.
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| 2003-06-01 | |
| 发表期刊 | CRETACEOUS RESEARCH
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| ISSN | 0195-6671 |
| 卷号 | 24期号:3页码:347-355 |
| 文章类型 | Article |
| 摘要 | A new dinosaur of Early Cretaceous age was recently discovered in the Gobi Desert of northwest China. It is more closely related to Late Cretaceous hadrosaurids than to Early Cretaceous iguanodontids. It occupies the most basal position in the phylogeny of all duck-billed dinosaurs, or the Hadrosauroidea. This early hadrosauroid sheds new light on the origin of the herbivorous feeding specializations of the Late Cretaceous duck-billed dinosaurs, and corroborates the view that the Iguanodontidae and the Hadrosauroidea are monophyletic clades, with the former characterized by an enlarged maxilla as the main mechanism for mastication, and the latter diagnosed by a smaller yet more mobile maxilla with an elaborate dental battery, separated by a diastema from the enlarged premaxilla. Our study also suggests that the Hadrosauroidea had most likely originated in Asia in the Early Cretaceous before this clade diversified and spread to other Laurasian continents during the Late Cretaceous. (C) 2003 Elsevier Ltd. All rights reserved.; A new dinosaur of Early Cretaceous age was recently discovered in the Gobi Desert of northwest China. It is more closely related to Late Cretaceous hadrosaurids than to Early Cretaceous iguanodontids. It occupies the most basal position in the phylogeny of all duck-billed dinosaurs, or the Hadrosauroidea. This early hadrosauroid sheds new light on the origin of the herbivorous feeding specializations of the Late Cretaceous duck-billed dinosaurs, and corroborates the view that the Iguanodontidae and the Hadrosauroidea are monophyletic clades, with the former characterized by an enlarged maxilla as the main mechanism for mastication, and the latter diagnosed by a smaller yet more mobile maxilla with an elaborate dental battery, separated by a diastema from the enlarged premaxilla. Our study also suggests that the Hadrosauroidea had most likely originated in Asia in the Early Cretaceous before this clade diversified and spread to other Laurasian continents during the Late Cretaceous. (C) 2003 Elsevier Ltd. All rights reserved. |
| 关键词 | Lower Cretaceous Dinosauria Hadrosauroidea Hadrosauridae Iguanodontidae Gobi Desert Gansu China Gen. Nov. Sp Nov. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine |
| URL | 查看原文 |
| 关键词[WOS] | ORNITHOPODS DINOSAURIA ; ORNITHISCHIA ; IGUANODON |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Geology ; Paleontology |
| WOS类目 | Geology ; Paleontology |
| WOS记录号 | WOS:000185439900006 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/3725 |
| 专题 | 中科院古脊椎所（2000年以后） 古低等脊椎动物研究室 |
| 通讯作者 | You, HL (reprint author), Chinese Acad Geol Sci, Inst Geol, Baiwanzhuang Rd 26, Beijing 100037, Peoples R China. |
| 作者单位 | 1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 10044, Peoples R China 2.Univ Penn, Dept Earth & Environm Sci, Philadelphia, PA 19104 USA 3.Carnegie Museum Nat Hist, Sect Vertebrate Paleontol, Pittsburgh, PA 15213 USA 4.Univ Chicago, Dept Organismal Biol & Anat, Chicago, IL 60637 USA 5.Ohio Univ, Dept Biomed Sci, Athens, OH 45701 USA |
| 推荐引用方式 GB/T 7714 | You, HL,Luo, ZX,Shubin, NH,et al. The earliest-known duck-billed dinosaur from deposits of late Early Cretaceous age in northwest China and hadrosaur evolution[J]. CRETACEOUS RESEARCH,2003,24(3):347-355. |
| APA | You, HL.,Luo, ZX.,Shubin, NH.,Witmer, LM.,Tang, ZL.,...&You, HL .(2003).The earliest-known duck-billed dinosaur from deposits of late Early Cretaceous age in northwest China and hadrosaur evolution.CRETACEOUS RESEARCH,24(3),347-355. |
| MLA | You, HL,et al."The earliest-known duck-billed dinosaur from deposits of late Early Cretaceous age in northwest China and hadrosaur evolution".CRETACEOUS RESEARCH 24.3(2003):347-355. |
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