中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
A new species of Largocephalosaurus (Diapsida: Saurosphargidae), with implications for the morphological diversity and phylogeny of the group

文献类型:期刊论文

作者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.
刊名GEOLOGICAL MAGAZINE
出版日期2014
卷号151期号:1页码:100-120
关键词Marine Reptile Morphology Phylogeny Triassic China
ISSN号0016-7568
文献子类Article
英文摘要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.
WOS关键词SOUTHWESTERN CHINA ; MARINE REPTILE ; EOSAUROPTERYGIAN DIAPSIDA ; ET-AL. ; SAUROPTERYGIA ; PANXIAN ; GUIZHOU ; OSTEOLOGY ; PROVINCE ; FAUNA
WOS研究方向Geology
语种英语
WOS记录号WOS:000332374100011
资助机构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
公开日期2014-12-12
源URL[http://119.78.100.205/handle/311034/5197]  
专题古脊椎动物与古人类研究所_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.

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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