Marine ostracod provinciality in the Late Ordovician of Palaeocontinental Laurentia and its environmental and geographical expression
Background: We examine the environmental, climatic and geographical controls on tropical ostracod distribution in the marine Ordovician of North America. Methodology/Principal Findings: Analysis of the inter-regional distribution patterns of Ordovician Laurentian ostracods, focussing particularly on...
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ftunivgent:oai:archive.ugent.be:3229424 2023-10-01T03:56:01+02:00 Marine ostracod provinciality in the Late Ordovician of Palaeocontinental Laurentia and its environmental and geographical expression Mohibullah, Mohibullah Williams, Mark Vandenbroucke, Thijs Sabbe, Koen Zalasiewicz, Jan A 2012 application/pdf https://biblio.ugent.be/publication/3229424 http://hdl.handle.net/1854/LU-3229424 https://doi.org/10.1371/journal.pone.0041682 https://biblio.ugent.be/publication/3229424/file/3229554 eng eng https://biblio.ugent.be/publication/3229424 http://hdl.handle.net/1854/LU-3229424 http://dx.doi.org/10.1371/journal.pone.0041682 https://biblio.ugent.be/publication/3229424/file/3229554 No license (in copyright) info:eu-repo/semantics/openAccess PLOS ONE ISSN: 1932-6203 Earth and Environmental Sciences LEPERDITELLIDAE RECONSTRUCTION OCEAN SPECIATION GIRVAN DISTRICT EASTERN UNITED-STATES SW SCOTLAND BALTOSCANDIA APARCHITIDAE BIOGEOGRAPHY journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2012 ftunivgent https://doi.org/10.1371/journal.pone.0041682 2023-09-06T22:33:23Z Background: We examine the environmental, climatic and geographical controls on tropical ostracod distribution in the marine Ordovician of North America. Methodology/Principal Findings: Analysis of the inter-regional distribution patterns of Ordovician Laurentian ostracods, focussing particularly on the diverse Late Ordovician Sandbian (ca 461 to 456 Ma) faunas, demonstrates strong endemicity at the species-level. Local endemism is very pronounced, ranging from 25% (e. g. Foxe basin) to 75% (e. g. Michigan basin) in each basin, a pattern that is also reflected in other benthic faunas such as brachiopods. Multivariate (ordination) analyses of the ostracod faunas allow demarcation of a Midcontinent Province and a southern Marginal Province in Laurentia. While these are most clearly differentiated at the stratigraphical level of the bicornis graptolite biozone, analyses of the entire dataset suggest that these provinces remain distinct throughout the Sandbian interval. Differences in species composition between the provinces appear to have been controlled by changes in physical parameters (e. g. temperature and salinity) related to water depth and latitude and a possible regional geographic barrier, and these differences persist into the Katian and possibly the Hirnantian. Local environmental parameters, perhaps operating at the microhabitat scale, may have been significant in driving local speciation events from ancestor species in each region. Conclusions/Significance: Our work establishes a refined methodology for assessing marine benthic arthropod micro-benthos provinciality for the Early Palaeozoic. Article in Journal/Newspaper Foxe Basin Ghent University Academic Bibliography Foxe Basin ENVELOPE(-77.918,-77.918,65.931,65.931) PLoS ONE 7 8 e41682 |
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Open Polar |
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Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Earth and Environmental Sciences LEPERDITELLIDAE RECONSTRUCTION OCEAN SPECIATION GIRVAN DISTRICT EASTERN UNITED-STATES SW SCOTLAND BALTOSCANDIA APARCHITIDAE BIOGEOGRAPHY |
spellingShingle |
Earth and Environmental Sciences LEPERDITELLIDAE RECONSTRUCTION OCEAN SPECIATION GIRVAN DISTRICT EASTERN UNITED-STATES SW SCOTLAND BALTOSCANDIA APARCHITIDAE BIOGEOGRAPHY Mohibullah, Mohibullah Williams, Mark Vandenbroucke, Thijs Sabbe, Koen Zalasiewicz, Jan A Marine ostracod provinciality in the Late Ordovician of Palaeocontinental Laurentia and its environmental and geographical expression |
topic_facet |
Earth and Environmental Sciences LEPERDITELLIDAE RECONSTRUCTION OCEAN SPECIATION GIRVAN DISTRICT EASTERN UNITED-STATES SW SCOTLAND BALTOSCANDIA APARCHITIDAE BIOGEOGRAPHY |
description |
Background: We examine the environmental, climatic and geographical controls on tropical ostracod distribution in the marine Ordovician of North America. Methodology/Principal Findings: Analysis of the inter-regional distribution patterns of Ordovician Laurentian ostracods, focussing particularly on the diverse Late Ordovician Sandbian (ca 461 to 456 Ma) faunas, demonstrates strong endemicity at the species-level. Local endemism is very pronounced, ranging from 25% (e. g. Foxe basin) to 75% (e. g. Michigan basin) in each basin, a pattern that is also reflected in other benthic faunas such as brachiopods. Multivariate (ordination) analyses of the ostracod faunas allow demarcation of a Midcontinent Province and a southern Marginal Province in Laurentia. While these are most clearly differentiated at the stratigraphical level of the bicornis graptolite biozone, analyses of the entire dataset suggest that these provinces remain distinct throughout the Sandbian interval. Differences in species composition between the provinces appear to have been controlled by changes in physical parameters (e. g. temperature and salinity) related to water depth and latitude and a possible regional geographic barrier, and these differences persist into the Katian and possibly the Hirnantian. Local environmental parameters, perhaps operating at the microhabitat scale, may have been significant in driving local speciation events from ancestor species in each region. Conclusions/Significance: Our work establishes a refined methodology for assessing marine benthic arthropod micro-benthos provinciality for the Early Palaeozoic. |
format |
Article in Journal/Newspaper |
author |
Mohibullah, Mohibullah Williams, Mark Vandenbroucke, Thijs Sabbe, Koen Zalasiewicz, Jan A |
author_facet |
Mohibullah, Mohibullah Williams, Mark Vandenbroucke, Thijs Sabbe, Koen Zalasiewicz, Jan A |
author_sort |
Mohibullah, Mohibullah |
title |
Marine ostracod provinciality in the Late Ordovician of Palaeocontinental Laurentia and its environmental and geographical expression |
title_short |
Marine ostracod provinciality in the Late Ordovician of Palaeocontinental Laurentia and its environmental and geographical expression |
title_full |
Marine ostracod provinciality in the Late Ordovician of Palaeocontinental Laurentia and its environmental and geographical expression |
title_fullStr |
Marine ostracod provinciality in the Late Ordovician of Palaeocontinental Laurentia and its environmental and geographical expression |
title_full_unstemmed |
Marine ostracod provinciality in the Late Ordovician of Palaeocontinental Laurentia and its environmental and geographical expression |
title_sort |
marine ostracod provinciality in the late ordovician of palaeocontinental laurentia and its environmental and geographical expression |
publishDate |
2012 |
url |
https://biblio.ugent.be/publication/3229424 http://hdl.handle.net/1854/LU-3229424 https://doi.org/10.1371/journal.pone.0041682 https://biblio.ugent.be/publication/3229424/file/3229554 |
long_lat |
ENVELOPE(-77.918,-77.918,65.931,65.931) |
geographic |
Foxe Basin |
geographic_facet |
Foxe Basin |
genre |
Foxe Basin |
genre_facet |
Foxe Basin |
op_source |
PLOS ONE ISSN: 1932-6203 |
op_relation |
https://biblio.ugent.be/publication/3229424 http://hdl.handle.net/1854/LU-3229424 http://dx.doi.org/10.1371/journal.pone.0041682 https://biblio.ugent.be/publication/3229424/file/3229554 |
op_rights |
No license (in copyright) info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1371/journal.pone.0041682 |
container_title |
PLoS ONE |
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7 |
container_issue |
8 |
container_start_page |
e41682 |
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1778525097615687680 |