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Llandovery (Silurian) conodont provincialism: An update based on quantitative analysis
Chen, Zhongyang (陈中阳)1,2,3; Mannik, Peep3; Fan, Junxuan (樊隽轩)4,5
2017-11-01
Source PublicationPALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
Volume485Pages:661-672
Abstract

The Llandovery conodont provincialism is reassessed based on a larger dataset than that which was available in 1990. The study interval is divided into two time units, the 'Pre-Telychian' and Telychian. Three quantitative methods are adopted in the biogeographic analysis, including cluster analysis, non-metric multidimensional scaling, and minimum spanning tree. In the 'Pre-Telychian' interval, four provinces can be recognized, i.e., the North American-Baltic-Siberian, Timan-Severnaya Zemlya, Australian, and Yangtze provinces. However, only three provinces can be recognized in the subsequent Telychian interval. The Timan-Sevemaya Zemlya Province existed also in this time interval, but Austria and Australia are combined with the 'Pre-Telychian' North American-Baltic Siberian Province and form a new province, theBaltic-Austrian-Siberian-Australian-North American Province (BASAN Province), while Tibet and the 'Pre-Telychian' Yangtze Province form the Chinese Province. The conodont richness shows a latitudinal or temperature-dependent gradient. The conodont fauna was most diverse in the lower latitudes (tropical, arid and partly warm temperate climatic zones). However, the provincialism of the Llandovery conodont faunas demonstrates a longitudinal pattern, which cannot be the result of any latitudinal factors, such as temperature, but could be controlled by longitudinal factors, probably by the circulation of ocean currents. The circulation pattern can also explain the formation of the Telychian BASAN Province, which probably resulted from the Rheic and Panthalassa Ocean gyres. According to the conodont provincialism and the distribution of taxa, five types of conodont species can be recognized, including Limitedly distributed species, BASAN species, Equatorial species, Shallow-Sea Realm species, and Cosmopolitan species. The conodont fauna showed a significant change in provincialism from the Ordovician to the Silurian, i.e., from a latitudinal pattern to a longitudinal pattern. The Hirnantian glaciation may be one of the controlling factors which resulted in the reorganization of the conodont faunas and the change of their living habits and ecological requirement. (C) 2017 Elsevier B.V. All rights reserved.

KeywordRichness Ocean Current Circulation Longitudinal
DOI10.1016/j.palaeo.2017.07.023
Indexed BySCI
Language英语
WOS KeywordGlobal Brachiopod Paleobiogeography ; Anticosti Island ; Ordovician ; Biostratigraphy ; Stratigraphy ; Spain ; Mountains ; America ; Turkey ; Alaska
Funding ProjectNational Natural Science Foundation of China[41521061] ; National Natural Science Foundation of China[U1562213] ; National Natural Science Foundation of China[41290260] ; National Natural Science Foundation of China[41502025] ; National Natural Science Foundation of China[J1210006] ; Chinese Academy of Sciences[XDPB05] ; Estonian Research Council[PUT378]
WOS Research AreaPhysical Geography ; Geology ; Paleontology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS IDWOS:000419747400048
Funding OrganizationNational Natural Science Foundation of China ; Chinese Academy of Sciences ; Estonian Research Council
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/14037
Collection中国科学院南京地质古生物研究所
中国科学院南京地质古生物研究所
其他
Corresponding AuthorFan, Junxuan (樊隽轩)
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Key Lab Econ Stratig & Palaeogeog, Nanjing 210008, Jiangsu, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Tallinn Univ Technol, Inst Geol, Ehitajate Tee 5, EE-19086 Tallinn, Estonia
4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China
5.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China
Corresponding Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
GB/T 7714
Chen, Zhongyang ,Mannik, Peep,Fan, Junxuan . Llandovery (Silurian) conodont provincialism: An update based on quantitative analysis[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2017,485:661-672.
APA Chen, Zhongyang ,Mannik, Peep,&Fan, Junxuan .(2017).Llandovery (Silurian) conodont provincialism: An update based on quantitative analysis.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,485,661-672.
MLA Chen, Zhongyang ,et al."Llandovery (Silurian) conodont provincialism: An update based on quantitative analysis".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 485(2017):661-672.
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