The tetrapod fauna of the upper Permian Naobaogou Formation of China: 9. A new species of Gansurhinus (Reptilia: Captorhinidae) and a revision of Chinese captorhinids
文献类型:期刊论文
作者 | Liu, Jun1,2 |
刊名 | JOURNAL OF VERTEBRATE PALEONTOLOGY |
出版日期 | 2023-05-05 |
页码 | 20 |
ISSN号 | 0272-4634 |
DOI | 10.1080/02724634.2023.2203200 |
通讯作者 | Liu, Jun(liujun@ivpp.ac.cn) |
英文摘要 | Two previously studied specimens of Gansurhinus qingtoushanensis are restudied, accompanied by the description of a relatively complete skeleton from the Lopingian Naobaogou Formation of Nei Mongol, China. The new skeleton represents an immature individual of a new species of Gansurhinus, which can be diagnosed by the choana position posterior to the premaxillary teeth, maxillary tooth position numbers of tooth row 5 is about half of tooth row 4, and length of row 5 is much shorter than length of tooth row 4. IVPP V12026 from the Naobaogou Formation is referred to the new species. Gansurhinus is distinguished by a diastema on the upper jaw, five rows of teeth on maxilla and dentary, teeth on the multiple tooth-rowed region bearing cusp-like emargination on the crown, lacking dental tooth wear. The following features could be the diagnostic characters of the genus or autapomorphies of the new species: ectopterygoid present; adductor fossa short relative to the length of lower jaw, with small contribution of surangular to posterolateral border; trapezoidal coronoid eminence with nearly straight dorsal margin; and foramen intermandibularis caudalis absent. Gansurhinus is more closely related to Rothianiscus than Moradisaurus, supporting previous analyses. This study further confirms recent work suggesting that the moradisaurine clade is more diverse than currently recognized. |
WOS关键词 | EUREPTILIA ; AMNIOTA ; LIMB |
资助项目 | Strategic Priority Research Program of Chinese Academy of Sciences ; [XDB26000000] |
WOS研究方向 | Paleontology |
语种 | 英语 |
出版者 | TAYLOR & FRANCIS INC |
WOS记录号 | WOS:000984743800001 |
资助机构 | Strategic Priority Research Program of Chinese Academy of Sciences |
源URL | [http://119.78.100.205/handle/311034/22516] |
专题 | 中国科学院古脊椎动物与古人类研究所 |
通讯作者 | Liu, Jun |
作者单位 | 1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 101408, Peoples R China 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Jun. The tetrapod fauna of the upper Permian Naobaogou Formation of China: 9. A new species of Gansurhinus (Reptilia: Captorhinidae) and a revision of Chinese captorhinids[J]. JOURNAL OF VERTEBRATE PALEONTOLOGY,2023:20. |
APA | Liu, Jun.(2023).The tetrapod fauna of the upper Permian Naobaogou Formation of China: 9. A new species of Gansurhinus (Reptilia: Captorhinidae) and a revision of Chinese captorhinids.JOURNAL OF VERTEBRATE PALEONTOLOGY,20. |
MLA | Liu, Jun."The tetrapod fauna of the upper Permian Naobaogou Formation of China: 9. A new species of Gansurhinus (Reptilia: Captorhinidae) and a revision of Chinese captorhinids".JOURNAL OF VERTEBRATE PALEONTOLOGY (2023):20. |
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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