The histology and affinities of sinacanthid fishes: primitive gnathostomes from the Silurian of China

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	The histology and affinities of sinacanthid fishes: primitive gnathostomes from the Silurian of China
	Sansom, IJ ; Wang, NZ ; Smith, M ; Sansom, IJ (reprint author), Univ Birmingham, Sch Geog Earth & Environm Sci, Lapworth Museum Geol, Birmingham B15 2TT, W Midlands, England.
	2005-07-01
发表期刊	ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
ISSN	0024-4082
卷号	144 期号:3 页码:379-386
文章类型	Article
摘要	On the basis of well preserved specimens from the Lower Silurian of the Tarim Basin, Xinjiang Uygur Autonomous Region and Shiqian County, Guizhou Province, People's Republic of China we describe in detail the histological structure of sinacanthid spines, the only known remains of a group of fishes common in Silurian strata from China. The sinacanthids have previously been assigned either to the acanthodians or to the chondrichthyans. The spine structure is composed of an outer layer of atubular dentine and an inner layer of globular calcified cartilage, and the nature and distribution of these tissues indicates that the spines were formed as a result of interaction between the endoskeleton and dermoskeleton. The tissue distribution and style of growth described herein places the sinacanthids crownwards of the placoderms, and possibly within the total group Chondrichthyes. However, before they can be firmly placed within a phylogenetic scheme, further evidence is required both on the general anatomy of sinacanthids and on the nature of chondrichthyan apomorphies. (C) 2005 The Linnean Society of London.; On the basis of well preserved specimens from the Lower Silurian of the Tarim Basin, Xinjiang Uygur Autonomous Region and Shiqian County, Guizhou Province, People's Republic of China we describe in detail the histological structure of sinacanthid spines, the only known remains of a group of fishes common in Silurian strata from China. The sinacanthids have previously been assigned either to the acanthodians or to the chondrichthyans. The spine structure is composed of an outer layer of atubular dentine and an inner layer of globular calcified cartilage, and the nature and distribution of these tissues indicates that the spines were formed as a result of interaction between the endoskeleton and dermoskeleton. The tissue distribution and style of growth described herein places the sinacanthids crownwards of the placoderms, and possibly within the total group Chondrichthyes. However, before they can be firmly placed within a phylogenetic scheme, further evidence is required both on the general anatomy of sinacanthids and on the nature of chondrichthyan apomorphies. (C) 2005 The Linnean Society of London.
关键词	Cartilage Chondrichthyes Dentine
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
URL	查看原文
关键词[WOS]	SHARKS ; CHONDRICHTHYAN ; ORDOVICIAN ; PERIOD ; FAUNA
收录类别	SCI
语种	英语
WOS研究方向	Zoology
WOS类目	Zoology
WOS记录号	WOS:000230518800005
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/3543
专题	中科院古脊椎所（2000年以后）
通讯作者	Sansom, IJ (reprint author), Univ Birmingham, Sch Geog Earth & Environm Sci, Lapworth Museum Geol, Birmingham B15 2TT, W Midlands, England.
作者单位	1.Univ Birmingham, Sch Geog Earth & Environm Sci, Lapworth Museum Geol, Birmingham B15 2TT, W Midlands, England 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 3.Inst Dent, London SE1 9RT, England
推荐引用方式 GB/T 7714	Sansom, IJ,Wang, NZ,Smith, M,et al. The histology and affinities of sinacanthid fishes: primitive gnathostomes from the Silurian of China[J]. ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY,2005,144(3):379-386.
APA	Sansom, IJ,Wang, NZ,Smith, M,&Sansom, IJ .(2005).The histology and affinities of sinacanthid fishes: primitive gnathostomes from the Silurian of China.ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY,144(3),379-386.
MLA	Sansom, IJ,et al."The histology and affinities of sinacanthid fishes: primitive gnathostomes from the Silurian of China".ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY 144.3(2005):379-386.

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