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Diversity and paleobiogeographic distribution patterns of early and Middle Ordovician graptolites in distinct depositional environments of South China
Zhang YuanDong (张元动)1; Chen Xu (陈旭)1; Goldman, Dan2; Zhang Ju (张举)1; Cheng JunFeng (成俊峰)1; Song YanYan (宋媛媛)1
2010-12-01
Source PublicationSCIENCE CHINA-EARTH SCIENCES
ISSN1674-7313
Volume53Issue:12Pages:1811-1827
Abstract

An analysis of Ordovician graptolite diversity across several distinct lithofacies belts in South China, which represent nearshore, inner-shelf, outer-shelf, slope, and basin environments, indicates that diversity increases progressively from nearshore toward the outer-shelf, acquiring its maximum in the slope facies and thereafter decreases slightly in basinal facies. When scaled against graptolite zones and more equal duration 'Time Units', the graptolite diversity patterns of the Early and Middle Ordovician are broadly similar among the distinct environments of South China but exhibit some important differences. A synthesized graptolite diversity curve from the Early Ordovician to the Sandbian Stage of the Late Ordovician in South China displays a step-wise increase with three peaks: 1) middle Floian (Early Ordovician), 2) late Dapingian-early Darriwilian (Middle Ordovician), and 3) latest Darriwilian (Middle Ordovician), which closely coincide with transgressive events in South China, implying a likely correlation. The biogeographic distribution of four graptolites with different ecological preferences, Pseudisograptus, Isograptus-Parisograptus, Undulograptus austrodentatus, and Corymbograptus turgidus, displays a significant parallelism with the coast or shelf margin, suggesting that their distributions may be controlled by water depth, basin morphology, and the distance from the coast.

KeywordOrdovician Graptolites Diversity Biogeography Paleoenvironment South China
DOI10.1007/s11430-010-4088-7
Language英语
WOS KeywordDiversification ; Zonation
Funding ProjectMinistry of Science and Technology of China[2006CB806402] ; Ministry of Science and Technology of China[2006FY120300-4] ; Ministry of Science and Technology of China[2008ZX05008-001-001] ; National Natural Science Foundation of China[40532009]
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000284845600008
Funding OrganizationMinistry of Science and Technology of China ; National Natural Science Foundation of China
PublisherSCIENCE PRESS
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/424
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorZhang YuanDong (张元动)
Affiliation1.Chinese Acad Sci, LPS, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
2.Univ Dayton, Dept Geol, Coll Arts & Sci, Dayton, OH 45469 USA
Recommended Citation
GB/T 7714
Zhang YuanDong ,Chen Xu ,Goldman, Dan,et al. Diversity and paleobiogeographic distribution patterns of early and Middle Ordovician graptolites in distinct depositional environments of South China[J]. SCIENCE CHINA-EARTH SCIENCES,2010,53(12):1811-1827.
APA Zhang YuanDong ,Chen Xu ,Goldman, Dan,Zhang Ju ,Cheng JunFeng ,&Song YanYan .(2010).Diversity and paleobiogeographic distribution patterns of early and Middle Ordovician graptolites in distinct depositional environments of South China.SCIENCE CHINA-EARTH SCIENCES,53(12),1811-1827.
MLA Zhang YuanDong ,et al."Diversity and paleobiogeographic distribution patterns of early and Middle Ordovician graptolites in distinct depositional environments of South China".SCIENCE CHINA-EARTH SCIENCES 53.12(2010):1811-1827.
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