| The First Stegosaur （Dinosauria, Ornithischia） from the Upper Jurassic Shishugou Formation of Xinjiang, China |
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| 作者姓名： | JIA Chengkai Catherine A. FOSTER XU Xing James M. CLARK |
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| 作者单位： | [1]Institute of Vertebrate Paleontology Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China [2]Research Institute of Exploration and Development, Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China [3]Graduate University of the Chinese Academy of Sciences, Beijing 100039, China [4]Department of Anatomical Sciences, Stony Brook University, Stony Brook, New York 11794, USA [5]Department of Biological Sciences, George Washington University, Washington DC 20052, USA |
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| 基金项目： | 国家自然科学基金
,
U.S.National Science Foundation (EAR)
,
National Geographic Society
,
Jurassic Foundation
,
Hilmar Sallee bequest,George Washington University
,
中国科学院基金 |
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| 摘 要： | A new stegosaur species, Jiangjunosaurus junggarensis, gen. et sp. nov., is erected based on a specimen collected from the Upper Jurassic upper section of the Shishugou Formation in the Junggar Basin, Xinjiang, China. It represents the first stegosaur from the Jurassic of Xinjiang and increases the diversity of the dinosaur fauna in the Shishugou Formation. The new genus is characterized by symmetrical and proportionally wide tooth crowns, a sub-rectangular axial neural spine seen in lateral view, and large openings on the lateral surfaces of the cervical centra. A preliminary character analysis suggests that this new taxon is more derived than the Middle Jurassic stegosaur Huayangosaurus but more primitive than most other known stegosaur species.
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| 关 键 词： | 恐龙 剑龙 鸟臀目 侏罗纪 |
| 修稿时间： | 2006-06-142007-02-02 |
The First Stegosaur (Dinosauria, Ornithischia) from the Upper Jurassic Shishugou Formation of Xinjiang, China |
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| Authors: | JIA Chengkai Catherine A FOSTER XU Xing James M CLARK |
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| Abstract: | A new stegosaur species, Jiangjunosaurusjunggarensis, gen. et sp. nov., is erected based on a specimen collected from the Upper Jurassic upper section of the Shishugou Formation in the Junggar Basin, Xinjiang, China. It represents the first stegosaur from the Jurassic of Xinjiang and increases the diversity of the dinosaur fauna in the Shishugou Formation. The new genus is characterized by symmetrical and proportionally wide tooth crowns, a sub-rectangular axial neural spine seen in lateral view, and large openings on the lateral surfaces of the cervical centra. A preliminary character analysis suggests that this new taxon is more derived than the Middle Jurassic stegosaur Huayangosaurus but more primitive than most other known stegosaur species. |
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| Keywords: | Dinosauria Stegosauria Upper Jurassic Shishugou Formation Xinjiang |
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