A basal ceratopsian with transitional features from the Late Jurassic of northwestern China
文献类型：期刊论文
| 作者 | Xu, Xing; Forster, Catherine A.; Clark, James M.; Mo, Jinyou; xu@amnh.org |
| 刊名 | P R SOC B
 |
| 出版日期 | 2006 |
| 卷号 | 273期号:1598 |
| 关键词 | Early Evolution Ornithischian Dinosaurs |
| ISSN号 | 0962-8452 |
| 英文摘要 | 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. |
| URL标识 | 查看原文 |
| 公开日期 | 2013-11-27 |
| 源URL | [http://119.78.100.205/handle/311034/4968]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 |
| 通讯作者 | xu@amnh.org |
| 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]. P R SOC B,2006,273(1598). |
| APA | Xu, Xing,Forster, Catherine A.,Clark, James M.,Mo, Jinyou,&xu@amnh.org.(2006).A basal ceratopsian with transitional features from the Late Jurassic of northwestern China.P R SOC B,273(1598). |
| MLA | Xu, Xing,et al."A basal ceratopsian with transitional features from the Late Jurassic of northwestern China".P R SOC B 273.1598(2006). |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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