Early and Middle Ordovician chitinozoans from the Dapingian type sections, Yichang area, China

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	Early and Middle Ordovician chitinozoans from the Dapingian type sections, Yichang area, China
	Chen, XH (Chen, Xiaohong); Paris, F (Paris, Florentin); Wang, XF (Wang, Xiaofeng); Zhang, M (Zhang, Miao)
刊名	REVIEW OF PALAEOBOTANY AND PALYNOLOGY
	2009
卷号	153 期号:3-4 页码:310-330
关键词	Chitinozoans Dapingian GSSP Dawan Formation Ordovician China
ISSN号	0034-6667
英文摘要	A detailed study of chitinozoans based on a systematic bed-by-bed sampling of the Dawan Formation was carried out in the Yichang area (West Hubei, China) on two representative sections located at Chenjiahe and at Huanghuachang, where the GSSP of the base of the Dapingian (i.e. the base of the Middle Ordovician) has been defined. Four chitinozoan zones, in ascending order the Conochitina raymondii biozone, the Conochitina langei biozone including the Lagenochitina lata and the Conochitina pseudocarinata subbiozones, the Lagenochitina combazi biozone, and the Sagenachitina dapingensis biozone, are recognized in the Dawan Formation, which ranges in age from the Floian to the early Darriwilian. In both sections the chitinozoan biozones benefit from a direct calibration with conodont and graptolite biozones. The base of the Lagenochitina combazi biozone is very close, or coincides with, the base of the Dapingian, as defined by the FAD of the conodont B. triangularis. For global correlation purposes three important Ordovician chitinozoan genera, i.e. Belonechitina, Sagenachitina and Cyathochitina have their FAD in the Dapingian. A total of 8 genera and 29 species, including 3 new species (Sagenachitina dapingensis sp. nov., Tanuchitina huanghuaensis sp. nov. and Lagenochitina yilingensis sp. nov.), are described and figured in this paper. (c) 2008 Elsevier B.V. All rights reserved.
学科主题	地层学与地史学
WOS关键词	WESTERN NEWFOUNDLAND ; LEVIS FORMATION ; EASTERN CANADA ; QUEBEC ; BIOSTRATIGRAPHY ; PART ; BALTOSCANDIA ; ASSEMBLAGES ; TALLINN ; ESTONIA
WOS研究方向	Plant Sciences ; Paleontology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000263853500008
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/38810]
专题	中国地质调查局
作者单位	Univ Rennes 1, CNRS, UMR6118, F-35042 Rennes, France
推荐引用方式 GB/T 7714	Chen, XH ,Paris, F ,Wang, XF ,et al. Early and Middle Ordovician chitinozoans from the Dapingian type sections, Yichang area, China[J]. REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2009,153(3-4):310-330.
APA	Chen, XH ,Paris, F ,Wang, XF ,&Zhang, M .(2009).Early and Middle Ordovician chitinozoans from the Dapingian type sections, Yichang area, China.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,153(3-4),310-330.
MLA	Chen, XH ,et al."Early and Middle Ordovician chitinozoans from the Dapingian type sections, Yichang area, China".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 153.3-4(2009):310-330.