| A basal ceratopsian with transitional features from the Late Jurassic of northwestern China | |
| Xu, Xing; Forster, Catherine A.; Clark, James M.; Mo, Jinyou | |
| 2006-09-07 | |
| 发表期刊 | PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
 |
| 卷号 | 273期号:1598页码:2135-2140 |
| 文章类型 | Article |
| 摘要 | Although the Ceratopsia and Pachycephalosauria, two major ornithischian groups, are united as the Marginocephalia, few synapomorphies have been identified due to their highly specialized body-plans. Several studies have linked the Heterodontosauridae with either the Ceratopsia or Marginocephalia, but evidence for these relationships is weak, leading most recent studies to consider the Heterodontosauridae as the basal member of another major ornithischian radiation, the Ornithopoda. Here, we report on a new basal ceratopsian dinosaur, Yinlong downsi gen. et. sp. nov., from the Late Jurassic upper part of the Shishugou Formation of Xinjiang, China. This new ceratopsian displays a series of features transitional between more derived ceratopsians and other ornithischians, shares numerous derived similarities with both the heterodontosaurids and pachycephalosaurians and provides strong evidence supporting a monophyletic Marginocephalia and its close relationship to the Heterodontosauridae. Character distributions along the marginocephalian lineage reveal that, compared to the bipedal Pachycephalosauria, which retained a primitive post-cranial body-plan, the dominantly quadrupedal ceratopsians lost many features and evolved their own characters early in their evolution. |
| 关键词 | Ceratopsia Marginocephalia Ornithischia Late Jurassic Shishugou Formation |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科领域 | 古爬行动物学 |
| 关键词[WOS] | EARLY EVOLUTION ; ORNITHISCHIAN DINOSAURS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Life Sciences & Biomedicine - Other Topics ; Environmental Sciences & Ecology ; Evolutionary Biology |
| WOS类目 | Biology ; Ecology ; Evolutionary Biology |
| WOS记录号 | WOS:000240104300006 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/1938 |
| 专题 | 古低等脊椎动物研究室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Amer Museum Nat Hist, New York, NY 10024 USA 3.SUNY Stony Brook, Dept Anat Sci, Stony Brook, NY 11794 USA 4.George Washington Univ, Dept Biol Sci, Washington, DC 20052 USA 5.China Univ Geosci, Fac Earth Sci, Wuhan 430074, Peoples R China 6.Nat Hist Museum Guangxi, Nanning 530012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Xing,Forster, Catherine A.,Clark, James M.,et al. A basal ceratopsian with transitional features from the Late Jurassic of northwestern China[J]. PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,2006,273(1598):2135-2140. |
| APA | Xu, Xing,Forster, Catherine A.,Clark, James M.,&Mo, Jinyou.(2006).A basal ceratopsian with transitional features from the Late Jurassic of northwestern China.PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,273(1598),2135-2140. |
| MLA | Xu, Xing,et al."A basal ceratopsian with transitional features from the Late Jurassic of northwestern China".PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 273.1598(2006):2135-2140. |
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