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Dispersal and endemic diversification: Differences in non-lithistid spiculate sponge faunas between the Cambrian Explosion and the GOBE
Botting, Joseph P.1,2; Muir, Lucy A.1
2019-03-01
Source PublicationPALAEOWORLD
ISSN1871-174X
Volume28Issue:1-2Pages:24-36
Abstract

Non-lithistid spiculate sponges were major components of Cambrian and Ordovician communities, but currently there is limited understanding of how sponge distribution patterns developed during the Cambrian Explosion and the Great Ordovician Biodiversification Event (GOBE). We compiled data on Cambrian and Ordovician sponge occurrences from the literature and our own research. Sponge genera were widely distributed during the Cambrian Period, with broadly consistent assemblages between palaeocontinents, from different palaeolatitudes, and over a timespan of approximately 25 Myr. Sponges exhibited a marked shift from cosmopolitan to highly endemic genera during the Tremadoc and later Ordovician. Surviving Cambrian genera continued to be very widespread, but taxa that originated during the Ordovician had much narrower geographic and environmental ranges, perhaps related to the origination of modern-style, patchy ecology. The cosmopolitanism of the Cambrian faunas is suggestive of rapid dispersal of recently evolved groups without competition from pre-existing sponges, suggesting that sponges had not diversified during the Precambrian. In contrast, the Ordovician record indicates local diversification against a complex ecological backdrop. Based on the ecological record of sponges, the Cambrian Explosion was a fundamentally different process to the GOBE. (C) 2018 Elsevier Ireland Ltd Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. Published by Elsevier B.V. All rights reserved.

KeywordPorifera Early Palaeozoic Ordovician radiation Diversification Origin
DOI10.1016/j.palwor.2018.03.002
Language英语
WOS KeywordPHYLLOPOD BED COMMUNITY ; SIRIUS PASSET BIOTA ; SOUTH CHINA ; HOUSE RANGE ; PROTOSPONGIID SPONGES ; HEXACTINELLID SPONGE ; EVOLUTIONARY HISTORY ; ORDOVICIAN SPONGES ; HETANG FORMATION ; DRUM MOUNTAINS
Funding ProjectCAS ; Ministry of Science and Technology of China[XDB10010100] ; Ministry of Science and Technology of China[2013FY111000] ; International Geoscience Programme (IGCP) Project[653]
WOS Research AreaPaleontology
WOS SubjectPaleontology
WOS IDWOS:000463600800004
Funding OrganizationCAS ; Ministry of Science and Technology of China ; International Geoscience Programme (IGCP) Project
PublisherELSEVIER SCIENCE BV
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/15775
Collection中国科学院南京地质古生物研究所
Corresponding AuthorBotting, Joseph P.
Affiliation1.Amgueddfa Cymru Natl Museum Wales, Dept Nat Sci, Cathays Pk, Cardiff CF10 3LP, S Glam, Wales
2.Nanjing Inst Geol & Palaeontol, 39 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Botting, Joseph P.,Muir, Lucy A.. Dispersal and endemic diversification: Differences in non-lithistid spiculate sponge faunas between the Cambrian Explosion and the GOBE[J]. PALAEOWORLD,2019,28(1-2):24-36.
APA Botting, Joseph P.,&Muir, Lucy A..(2019).Dispersal and endemic diversification: Differences in non-lithistid spiculate sponge faunas between the Cambrian Explosion and the GOBE.PALAEOWORLD,28(1-2),24-36.
MLA Botting, Joseph P.,et al."Dispersal and endemic diversification: Differences in non-lithistid spiculate sponge faunas between the Cambrian Explosion and the GOBE".PALAEOWORLD 28.1-2(2019):24-36.
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