A new articulated hybodontoid from Late Permian of northwestern China

IVPP-IR > 中科院古脊椎所（2000年以后）

	A new articulated hybodontoid from Late Permian of northwestern China
	Wang, N. -Z.1; Zhang, X.2; Zhu, M.1 ; Zhao, W. -J.1; wwangnz@hotmail.com
	2009-05-01
发表期刊	ACTA ZOOLOGICA
ISSN	0001-7272
卷号	90 页码:159-170
文章类型	Article
摘要	A new genus and species of hybodontoid elasmobranchs, Gansuselache tungshengi, is described on the basis of an articulated skeleton from the Fangshankou Formation (Late Permian) of the Mazongshan Mountain of Gansu Province, northwestern China. All dermal skeletons including dorsal fin-spines, cephalic spines, dermal denticles and one tooth are well preserved in their natural position. It is a shark of about 490 mm total length with a fusiform body. The braincase has large, downturned postorbital processes and otic capsules, no postorbital articulation, long palatoquadrate and large triangular Meckel's cartilage. It bears two dorsal fins and two pairs of heteromorphic cephalic spines. The tooth is of low-crowned, multicuspid type; the elongate tooth crown has stout crown shoulder and well-developed, rounded labial peg; the cusp and cusplets are moderately tumid, and have a few strong and curved folds; the tooth root is higher on the labial face than the lingual face. The dermal denticle is placoid scale-like, with its crown surface ornamented with some parallel ridges. Gansuselache, the first articulated hybodontiform from Asia, also represents the first complete hybodontiform from the Permian.
关键词	Hybodontoid Morphology Late Permian Northwestern China
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
URL	查看原文
关键词[WOS]	GENUS LISSODUS ; SHARK
收录类别	SCI ; ISTP
语种	英语
WOS研究方向	Anatomy & Morphology ; Zoology
WOS类目	Anatomy & Morphology ; Zoology
WOS记录号	WOS:000266242000014
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/4739
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	wwangnz@hotmail.com
作者单位	1.Chinese Acad Sci, Inst Vertebrate Palaeontol & Palaeoanthropol, Lab Evolutionary Systemat Vertebrates, Beijing 100044, Peoples R China 2.Nat Museum Gansu, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Wang, N. -Z.,Zhang, X.,Zhu, M.,et al. A new articulated hybodontoid from Late Permian of northwestern China[J]. ACTA ZOOLOGICA,2009,90:159-170.
APA	Wang, N. -Z.,Zhang, X.,Zhu, M.,Zhao, W. -J.,&wwangnz@hotmail.com.(2009).A new articulated hybodontoid from Late Permian of northwestern China.ACTA ZOOLOGICA,90,159-170.
MLA	Wang, N. -Z.,et al."A new articulated hybodontoid from Late Permian of northwestern China".ACTA ZOOLOGICA 90(2009):159-170.

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