KMS Institute of Vertebrate Paleontology and Paleoanthropology
| Redescription of Gigantspinosaurus sichuanensis (Dinosauria, Stegosauria) from the Late Jurassic of Sichuan, Southwestern China | |
Hao Baoqiao1; Zhang Qiannan2,3,4; Peng Guangzhao1; Ye Yong1; You Hailu2,3,4
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| 2018-04-01 | |
| 发表期刊 | ACTA GEOLOGICA SINICA-ENGLISH EDITION
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| ISSN | 1000-9515 |
| 卷号 | 92期号:2页码:431-441 |
| 通讯作者 | Hao Baoqiao(haobaoqiao1984@163.com) |
| 摘要 | Gigantspinosaurus sichuanensis is one of the six Stegosauria genera discovered from the Sichuan basin, which preserves the first skin impressions of stegosaurs around the world and a huge pair of 'comma' -shaped parascapular spines kept in situ, and being named after the latter feature. The holotype was firstly named and reported in an abstract of a lecture by Ouyang, 1992, since when it has never been detailed studied and the taxonomic position of Gigantspinosaurus is also vague. The morphological redescription shows that G. sichuanensis is a medium-sized stegosaur, with external mandibular foramen developed. The ratio of femur to humerus is large, and the intersacral fenestrae are big. According to the wear degree of teeth, the holotype of G. sichuanensis is regarded as an adult individual. On the basis of the recent data matrix of stegosaurs and the characters revisions of G. sichuanensis, its phylogenetic position has been determined again. By our detailed morphological and phylogenetic analysis, G. sichuanensis is considered to inherit some primitive traits, but it is more derived than Huayangosaurus, and located in a transitional position between Huayangosaurus and Tuojiangosaurus, as a kind of evolved stegosaurs. The ancestors of Stegosauria are small and quadruped, with primitive ornithopod-like skull, and grow leaf-shaped teeth, a large number of bone plates. |
| 关键词 | Gigantspinosaurus Sichuan basin systematics transitional type adult individual |
| DOI | 10.1111/1755-6724.13535 |
| 关键词[WOS] | PHYLOGENETIC-RELATIONSHIPS ; ORNITHISCHIA ; PROVINCE |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | Zigong Dinosaur Museum curator foundation |
| 项目资助者 | Zigong Dinosaur Museum curator foundation |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| WOS记录号 | WOS:000437257000001 |
| 出版者 | WILEY |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/16729 |
| 专题 | 中科院古脊椎所（2000年以后） |
| 通讯作者 | Hao Baoqiao |
| 作者单位 | 1.Zigong Dinosaur Museum, Zigong 643013, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 3.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hao Baoqiao,Zhang Qiannan,Peng Guangzhao,et al. Redescription of Gigantspinosaurus sichuanensis (Dinosauria, Stegosauria) from the Late Jurassic of Sichuan, Southwestern China[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2018,92(2):431-441. |
| APA | Hao Baoqiao,Zhang Qiannan,Peng Guangzhao,Ye Yong,&You Hailu.(2018).Redescription of Gigantspinosaurus sichuanensis (Dinosauria, Stegosauria) from the Late Jurassic of Sichuan, Southwestern China.ACTA GEOLOGICA SINICA-ENGLISH EDITION,92(2),431-441. |
| MLA | Hao Baoqiao,et al."Redescription of Gigantspinosaurus sichuanensis (Dinosauria, Stegosauria) from the Late Jurassic of Sichuan, Southwestern China".ACTA GEOLOGICA SINICA-ENGLISH EDITION 92.2(2018):431-441. |
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| hao2018.pdf（1747KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
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