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Diversity analysis of the Early Ordovician Sinorthis Fauna (Brachiopoda) from the Meitan Formation of Zunyi, Northern Guizhou, South China
Zhan, Renbin (詹仁斌)1; Jin, Jisuo2
2008
Source PublicationEARTH AND ENVIRONMENTAL SCIENCE TRANSACTIONS OF THE ROYAL SOCIETY OF EDINBURGH
ISSN1755-6910
Volume98Pages:239-251
Abstract

The lower Meitan Formation (Floian, upper Lower Ordovician) at the Dajiaosi section, Zunyi District, northern Guizhou Province of South China, contains a moderately rich and diverse Sinorthis Fauna, with 22 species attributable separately to 15 families and seven orders of brachiopods. The fauna can be differentiated into three associations: the Paralenorthis serica, the Sinorthis typica, and the Tarfaya intercalare associations. These Occupied a relatively wide palaeoecological range from lower BA3 to upper BA2 settings and from silty to clay Substrate conditions. In South China, the Early Ordovician brachiopod radiation was marked by the diversification of the orthide-dominated Sinorthis Fauna, which first appeared and diversified in the middle part (relatively deep water) of the Upper Yangtze Platform in the Didymograptellus eobifidus Biozone, but rapidly declined in the succeeding Corymbograptus deflexus and basal Azygograptus suecicus biozones. During the latest Floian and early Dapingian, it expanded into comparatively shallow-water settings in the onshore direction (Changning area, southern Sichuan), offshore carbonate platform (Yichang, Hubei), and areas adjacent to the submergent Qianzhong Arch (such as the Zunyi area). The first appearance datum of the Sinorthis Fauna in shallower-water settings generally postdates that in the deeper-water environment in the central Upper Yangtze Platform, probably as a result of the fauna tracking a favoured BA3 setting during a gradual marine transgression.

KeywordBenthic Shelly Fauna Biodiversity Change Floian-darriwilian Jiangnan Slope Yangtze Platform
DOI10.1017/S1755691007080383
Language英语
WOS KeywordEarly-mid Ordovician ; Diversification
Funding ProjectChinese Academy of Sciences[KZCX3-SW-149] ; Ministry of Science and Technology of China[2006CB806402] ; Ministry of Science and Technology of China[200617Y120300-5] ; CAS/SAFEA International Partnership Program for Creative Research Teams ; Natural Sciences and Engineering Research Council of Canada
WOS Research AreaGeology ; Paleontology
WOS SubjectGeosciences, Multidisciplinary ; Paleontology
WOS IDWOS:000259046200004
Funding OrganizationChinese Academy of Sciences ; Ministry of Science and Technology of China ; CAS/SAFEA International Partnership Program for Creative Research Teams ; Natural Sciences and Engineering Research Council of Canada
PublisherCAMBRIDGE UNIV PRESS
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Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/126
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorZhan, Renbin (詹仁斌)
Affiliation1.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
2.Univ Western Ontario, Dept Earth Sci, London, ON N6A 5B7, Canada
Recommended Citation
GB/T 7714
Zhan, Renbin ,Jin, Jisuo. Diversity analysis of the Early Ordovician Sinorthis Fauna (Brachiopoda) from the Meitan Formation of Zunyi, Northern Guizhou, South China[J]. EARTH AND ENVIRONMENTAL SCIENCE TRANSACTIONS OF THE ROYAL SOCIETY OF EDINBURGH,2008,98:239-251.
APA Zhan, Renbin ,&Jin, Jisuo.(2008).Diversity analysis of the Early Ordovician Sinorthis Fauna (Brachiopoda) from the Meitan Formation of Zunyi, Northern Guizhou, South China.EARTH AND ENVIRONMENTAL SCIENCE TRANSACTIONS OF THE ROYAL SOCIETY OF EDINBURGH,98,239-251.
MLA Zhan, Renbin ,et al."Diversity analysis of the Early Ordovician Sinorthis Fauna (Brachiopoda) from the Meitan Formation of Zunyi, Northern Guizhou, South China".EARTH AND ENVIRONMENTAL SCIENCE TRANSACTIONS OF THE ROYAL SOCIETY OF EDINBURGH 98(2008):239-251.
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