CRANIAL ANATOMY OF YINLONG DOWNSI (ORNITHISCHIA: CERATOPSIA) FROM THE UPPER JURASSIC SHISHUGOU FORMATION OF XINJIANG, CHINA
文献类型：期刊论文
| 作者 | Han, Feng-Lu1,2; Forster, Catherine A.3; Clark, James M.3; Xu, Xing2 |
| 刊名 | JOURNAL OF VERTEBRATE PALEONTOLOGY
 |
| 出版日期 | 2016-01-02 |
| 卷号 | 36期号:1 |
| DOI | 10.1080/02724634.2015.1029579 |
| 文献子类 | Article |
| 英文摘要 | Yinlong downsi, from the Upper Jurassic Shishugou Formation, Xinjiang, northwestern China, is the oldest known ceratopsian dinosaur. Here we provide a detailed description of the skull and mandible based on the holotype, three partial skulls, and disarticulated materials from several other specimens. Yinlong can be diagnosed by six autapomorphies: a distinct fossa along the midline of the frontals; a slit-like carotid canal bordered by laminae; premaxillary teeth with a vertical wear facet and a basal shelf; a deep sulcus on the ventral surface of the quadratojugal; large oval nodules concentrated on the lateral surface of the jugal; and a squamosal with an expanded dorsal surface and a long, constricted quadrate process. A detailed comparison with other basal ceratopsians suggests that Yinlong downsi may belong within Chaoyangsauridae. Yinlong also shares many derived characters both with Psittacosaurus and neoceratopsians, suggesting that character evolution in early ceratopsians is complex. Additionally, a caniniform premaxillary tooth is present in one small specimen (IVPP V18636), which may suggest sexual dimorphism or individual variation. |
| WOS关键词 | JEHOLOSAURUS-SHANGYUANENSIS DINOSAURIA ; HETERODONTOSAURID DINOSAUR ; NEOCERATOPSIAN DINOSAUR ; TUCHENGZI FORMATION ; EARLY EVOLUTION ; PHYLOGENY ; PROVINCE |
| WOS研究方向 | Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:000370007100003 |
| 资助机构 | National Natural Science Foundation of China(41120124002) ; National Geographic Society ; U.S. National Science Foundation(EAR 0310217 ; Fundamental Research Funds for the Central Universities(CUGL140806) ; EAR 0922187) |
| 源URL | [http://124.16.247.212/handle/311034/7128]  |
| 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, 388 Lumo Rd, Wuhan 430074, Peoples R China 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, 142 Xizhimenwai St, Beijing 100044, Peoples R China 3.George Washington Univ, Dept Biol Sci, 2023 G St Northwest, Washington, DC 20052 USA |
| 推荐引用方式 GB/T 7714 | Han, Feng-Lu,Forster, Catherine A.,Clark, James M.,et al. CRANIAL ANATOMY OF YINLONG DOWNSI (ORNITHISCHIA: CERATOPSIA) FROM THE UPPER JURASSIC SHISHUGOU FORMATION OF XINJIANG, CHINA[J]. JOURNAL OF VERTEBRATE PALEONTOLOGY,2016,36(1). |
| APA | Han, Feng-Lu,Forster, Catherine A.,Clark, James M.,&Xu, Xing.(2016).CRANIAL ANATOMY OF YINLONG DOWNSI (ORNITHISCHIA: CERATOPSIA) FROM THE UPPER JURASSIC SHISHUGOU FORMATION OF XINJIANG, CHINA.JOURNAL OF VERTEBRATE PALEONTOLOGY,36(1). |
| MLA | Han, Feng-Lu,et al."CRANIAL ANATOMY OF YINLONG DOWNSI (ORNITHISCHIA: CERATOPSIA) FROM THE UPPER JURASSIC SHISHUGOU FORMATION OF XINJIANG, CHINA".JOURNAL OF VERTEBRATE PALEONTOLOGY 36.1(2016). |
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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