| A new species of Largocephalosaurus (Diapsida: Saurosphargidae), with implications for the morphological diversity and phylogeny of the group | |
| Li, Chun1; Jiang, Da-Yong2,3; Cheng, Long4; Wu, Xiao-Chun5; Rieppel, Olivier6; Li, C (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Lab Evolutionary Systemat Vertebrates, POB 643, Beijing 100044, Peoples R China. | |
| 2014 | |
| 发表期刊 | GEOLOGICAL MAGAZINE
 |
| ISSN | 0016-7568 |
| 卷号 | 151期号:1页码:100-120 |
| 文章类型 | Article |
| 摘要 | Largocephalosaurus polycarpon Cheng et al. 2012a was erected after the study of the skull and some parts of a skeleton and considered to be an eosauropterygian. Here we describe a new species of the genus, Largocephalosaurus qianensis, based on three specimens. The new species provides many anatomical details which were described only briefly or not at all in the type species, and clearly indicates that Largocephalosaurus is a saurosphargid. It differs from the type species mainly in having three premaxillary teeth, a very short retroarticular process, a large pineal foramen, two sacral vertebrae, and elongated small granular osteoderms mixed with some large ones along the lateral most side of the body. With additional information from the new species, we revise the diagnosis and the phylogenetic relationships of Largocephalosaurus and clarify a set of diagnostic features for the Saurosphargidae Li et al. 2011. Largocephalosaurus is characterized primarily by an oval supratemporal fenestra, an elongate dorsal rib-basket', a narrow and elongate transverse process of the dorsal vertebrae, and the lack of a complete dorsal carapace of osteoderms. The Saurosphargidae is distinct mainly in having a retracted external naris, a jugal-squamosal contact, a large supratemporal extensively contacting the quadrate shaft, a leaf-like tooth crown with convex labial surface and concave lingual surface, a closed dorsal rib-basket', many dorsal osteoderms, a large boomerang-like or atypical T-shaped interclavicle. Current evidence suggests that the Saurosphargidae is the sister-group of the Sauropterygia and that Largocephalosaurus is the sister-group of the Saurosphargis-Sinosaurosphargis clade within the family. |
| 关键词 | Marine Reptile Morphology Phylogeny Triassic China |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 关键词[WOS] | SOUTHWESTERN CHINA ; MARINE REPTILE ; EOSAUROPTERYGIAN DIAPSIDA ; ET-AL. ; SAUROPTERYGIA ; PANXIAN ; GUIZHOU ; OSTEOLOGY ; PROVINCE ; FAUNA |
| 收录类别 | SCI |
| 语种 | 英语 |
| 项目资助者 | National Natural Science Foundation of PR China [NNSFC-41072014, 40772015, 40920124002, 40672002]; CAS/SAFEA International Partnership Program for Creative Research Teams of China; Program for New Century Excellent Talents in Universities [NCET-07-0015]; CMN; FMNH |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| WOS记录号 | WOS:000332374100011 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/5197 |
| 专题 | 古低等脊椎动物研究室 |
| 通讯作者 | Li, C (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Lab Evolutionary Systemat Vertebrates, POB 643, Beijing 100044, Peoples R China. |
| 作者单位 | 1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Lab Evolutionary Systemat Vertebrates, Beijing 100044, Peoples R China 2.Peking Univ, Dept Geol, Beijing 100871, Peoples R China 3.Peking Univ, Geol Museum, Beijing 100871, Peoples R China 4.Wuhan Inst Geol & Mineral Resources, Wuhan 430223, Peoples R China 5.Canadian Museum Nat, Ottawa, ON K1P 6P4, Canada 6.Field Museum Nat Hist, Dept Geol, Chicago, IL 60605 USA |
| 推荐引用方式 GB/T 7714 | Li, Chun,Jiang, Da-Yong,Cheng, Long,et al. A new species of Largocephalosaurus (Diapsida: Saurosphargidae), with implications for the morphological diversity and phylogeny of the group[J]. GEOLOGICAL MAGAZINE,2014,151(1):100-120. |
| APA | Li, Chun,Jiang, Da-Yong,Cheng, Long,Wu, Xiao-Chun,Rieppel, Olivier,&Li, C .(2014).A new species of Largocephalosaurus (Diapsida: Saurosphargidae), with implications for the morphological diversity and phylogeny of the group.GEOLOGICAL MAGAZINE,151(1),100-120. |
| MLA | Li, Chun,et al."A new species of Largocephalosaurus (Diapsida: Saurosphargidae), with implications for the morphological diversity and phylogeny of the group".GEOLOGICAL MAGAZINE 151.1(2014):100-120. |
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