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

IVPP-IR > 中科院古脊椎所（2000年以后）

	A new archosaur from the Upper Triassic Pardonet Formation of British Columbia
	Nicholls, EL ; Brinkman, DB ; Wu, XC; Nicholls, EL (reprint author), Royal Tyrrell Museum Palaeontol, Box 7500, Drumheller, AB T0J 0YO, Canada.
	1998-10-01
发表期刊	CANADIAN JOURNAL OF EARTH SCIENCES
ISSN	0008-4077
卷号	35 期号:10 页码:1134-1142
文章类型	Article
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.
WOS标题词	Science & Technology ; Physical Sciences
URL	查看原文
收录类别	SCI
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000079398300005
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/3973
专题	中科院古脊椎所（2000年以后）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
推荐引用方式 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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