A New Taxon of Basal Ceratopsian from China and the Early Evolution of Ceratopsia
文献类型：期刊论文
| 作者 | Han, Fenglu1,2; Forster, Catherine A.3; Clark, James M.3; Xu, Xing2 |
| 刊名 | PLOS ONE
 |
| 出版日期 | 2015-12-09 |
| 卷号 | 10期号:12 |
| 文献子类 | Article |
| 英文摘要 | Ceratopsia is one of the best studied herbivorous ornithischian clades, but the early evolution of Ceratopsia, including the placement of Psittacosaurus, is still controversial and unclear. Here, we report a second basal ceratopsian, Hualianceratops wucaiwanensis gen. et sp. nov., from the Upper Jurassic (Oxfordian) Shishugou Formation of the Junggar Basin, northwestern China. This new taxon is characterized by a prominent caudodorsal process on the subtemporal ramus of the jugal, a robust quadrate with an expansive quadratojugal facet, a prominent notch near the ventral region of the quadrate, a deep and short dentary, and strongly rugose texturing on the lateral surface of the dentary. Hualianceratops shares several derived characters with both Psittacosaurus and the basal ceratopsians Yinlong, Chaoyangsaurus, and Xuanhuaceratops. A new comprehensive phylogeny of ceratopsians weakly supports both Yinlong and Hualianceratops as chaoyangsaurids (along with Chaoyangsaurus and Xuanhuaceratops), as well as the monophyly of Chaoyangosauridae + Psittacosaurus. This analysis also weakly supports the novel hypothesis that Chaoyangsauridae + Psittacosaurus is the sister group to the rest of Neoceratopsia, suggesting a basal split between these clades before the Late Jurassic. This phylogeny and the earliest Late Jurassic age of Yinlong and Hualianceratops imply that at least five ceratopsian lineages (Yinlong, Hualianceratops, Chaoyangsaurus + Xuanhuaceratops, Psittacosaurus, Neoceratopsia) were present at the beginning of the Late Jurassic. |
| WOS关键词 | DINOSAUR CHANGCHUNSAURUS-PARVUS ; NEOCERATOPSIAN DINOSAUR ; TUCHENGZI FORMATION ; JILIN PROVINCE |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000366903300016 |
| 源URL | [http://124.16.247.212/handle/311034/7159]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 |
| 作者单位 | 1.China Univ Geosci, Sch Earth Sci, Wuhan 430074, Peoples R China 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Evolutionary Systemat Vertebrates, Beijing, Peoples R China 3.George Washington Univ, Dept Biol Sci, Washington, DC 20052 USA |
| 推荐引用方式 GB/T 7714 | Han, Fenglu,Forster, Catherine A.,Clark, James M.,et al. A New Taxon of Basal Ceratopsian from China and the Early Evolution of Ceratopsia[J]. PLOS ONE,2015,10(12). |
| APA | Han, Fenglu,Forster, Catherine A.,Clark, James M.,&Xu, Xing.(2015).A New Taxon of Basal Ceratopsian from China and the Early Evolution of Ceratopsia.PLOS ONE,10(12). |
| MLA | Han, Fenglu,et al."A New Taxon of Basal Ceratopsian from China and the Early Evolution of Ceratopsia".PLOS ONE 10.12(2015). |
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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