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A new archosaur from the Upper Triassic Pardonet Formation of British Columbia

文献类型:期刊论文

作者Nicholls, EL; Brinkman, DB; Wu, XC; Nicholls, EL (reprint author), Royal Tyrrell Museum Palaeontol, Box 7500, Drumheller, AB T0J 0YO, Canada.
刊名CANADIAN JOURNAL OF EARTH SCIENCES
出版日期1998-10-01
卷号35期号:10页码:1134-1142
ISSN号0008-4077
文献子类Article
英文摘要Sikannisuchus huskyi, a new genus and species of archosaur, is described from the Upper Triassic (Norian) Pardonet Formation of northeastern British Columbia. It has a broad, flat skull, and may have reached 4 m in length. It is referred to the Archosauria on the basis of a lateral mandibular fenestra, laterally compressed serrated teeth, elongate transverse processes, neural spine table, osteoderms, and thecodont dentition. It is autapomorphic in that the postfrontal enters the border of both the orbit and the supratemporal fenestra, and it has a large prefrontal that contacts both the nasal and the postfrontal, excluding the frontal from the margin of the orbit. The presence of osteoderms and a well-developed clavicle exclude Sikannisuchus from the Ornithodira; however, in the absence of any preserved limb material, we cannot assign it to the Crurotarsi. Sikannisuchus is not currently referable to any known taxon of archosaur and is left as Archosauria incertae sedis.; Sikannisuchus huskyi, a new genus and species of archosaur, is described from the Upper Triassic (Norian) Pardonet Formation of northeastern British Columbia. It has a broad, flat skull, and may have reached 4 m in length. It is referred to the Archosauria on the basis of a lateral mandibular fenestra, laterally compressed serrated teeth, elongate transverse processes, neural spine table, osteoderms, and thecodont dentition. It is autapomorphic in that the postfrontal enters the border of both the orbit and the supratemporal fenestra, and it has a large prefrontal that contacts both the nasal and the postfrontal, excluding the frontal from the margin of the orbit. The presence of osteoderms and a well-developed clavicle exclude Sikannisuchus from the Ornithodira; however, in the absence of any preserved limb material, we cannot assign it to the Crurotarsi. Sikannisuchus is not currently referable to any known taxon of archosaur and is left as Archosauria incertae sedis.
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WOS研究方向Geology
语种英语
WOS记录号WOS:000079398300005
公开日期2013-11-27
源URL[http://119.78.100.205/handle/311034/3974]  
专题古脊椎动物与古人类研究所_图书馆1
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Nicholls, EL (reprint author), Royal Tyrrell Museum Palaeontol, Box 7500, Drumheller, AB T0J 0YO, Canada.
作者单位1.Royal Tyrrell Museum Palaeontol, Drumheller, AB T0J 0YO, Canada
2.Univ Calgary, Dept Biol Sci, Calgary, AB T2N 1N4, Canada
3.Acad Sinica, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
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GB/T 7714
Nicholls, EL,Brinkman, DB,Wu, XC,et al. A new archosaur from the Upper Triassic Pardonet Formation of British Columbia[J]. CANADIAN JOURNAL OF EARTH SCIENCES,1998,35(10):1134-1142.
APA Nicholls, EL,Brinkman, DB,Wu, XC,&Nicholls, EL .(1998).A new archosaur from the Upper Triassic Pardonet Formation of British Columbia.CANADIAN JOURNAL OF EARTH SCIENCES,35(10),1134-1142.
MLA Nicholls, EL,et al."A new archosaur from the Upper Triassic Pardonet Formation of British Columbia".CANADIAN JOURNAL OF EARTH SCIENCES 35.10(1998):1134-1142.

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来源:古脊椎动物与古人类研究所

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