Multivariate hierarchical analyses of Early Jurassic Ostracoda assemblages

Palaeobiogeographic patterns of Early Jurassic ostracods from the northern and southern hemispheres (96 sections located in Europe, North Africa, Western Australia and North and South America) based on 243 species-level records document global patterns of distribution that can be compared to those p...

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Detalles Bibliográficos
Autores: Arias Fernández, María Del Carmen, Whatley, R.C.
Tipo de recurso: artículo
Fecha de publicación:2009
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/44364
Acceso en línea:https://hdl.handle.net/20.500.14352/44364
Access Level:acceso abierto
Palabra clave:565.33
Early Jurassic
European Epicontinental Sea
Ostracod
Palaeobiogeography
Palaeoceanography
Paleontología
2416 Paleontología
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repository_id_str
spelling Multivariate hierarchical analyses of Early Jurassic Ostracoda assemblagesArias Fernández, María Del CarmenWhatley, R.C.565.33Early JurassicEuropean Epicontinental SeaOstracodPalaeobiogeographyPalaeoceanographyPaleontología2416 PaleontologíaPalaeobiogeographic patterns of Early Jurassic ostracods from the northern and southern hemispheres (96 sections located in Europe, North Africa, Western Australia and North and South America) based on 243 species-level records document global patterns of distribution that can be compared to those previously published on ostracods from the European Epicontinental Sea and Tethyan and South Panthalassa areas. All described records of ostracods from both hemispheres spanning the Hettangian to Early Toarcian have been compiled and verified, and their patterns of origin and distribution have been interpreted. Jaccard coefficient of similarity was used to asses similarities among European, American and Tethyan ostracod shelf faunas. The numerical analysis shows a progressive longitudinal gradient in provincialism through the Early Jurassic, consistent with the northward drift of Tethyan ostracod faunas towards the European Epicontinental Sea and the southward movement of European taxa into Tethys and Panthalassa oceans. The spread of cosmopolitan species and extinction of endemic species, allied to the disappearance of geographical barriers, warmer climate conditions and rising sea levels can explain the reduction in ostracod diversity and the east-west provincialism throughout the Early Jurassic. Interchange between hemispheres, including bipolar distributions, are recognized from the Sinemurian time, pointing out that for most of the studied period, the climate worldwide was warm and tropical.Taylor & FrancisUniversidad Complutense de Madrid20092009-01-0120092009-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/44364reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/443642026-06-02T12:44:21Z
dc.title.none.fl_str_mv Multivariate hierarchical analyses of Early Jurassic Ostracoda assemblages
title Multivariate hierarchical analyses of Early Jurassic Ostracoda assemblages
spellingShingle Multivariate hierarchical analyses of Early Jurassic Ostracoda assemblages
Arias Fernández, María Del Carmen
565.33
Early Jurassic
European Epicontinental Sea
Ostracod
Palaeobiogeography
Palaeoceanography
Paleontología
2416 Paleontología
title_short Multivariate hierarchical analyses of Early Jurassic Ostracoda assemblages
title_full Multivariate hierarchical analyses of Early Jurassic Ostracoda assemblages
title_fullStr Multivariate hierarchical analyses of Early Jurassic Ostracoda assemblages
title_full_unstemmed Multivariate hierarchical analyses of Early Jurassic Ostracoda assemblages
title_sort Multivariate hierarchical analyses of Early Jurassic Ostracoda assemblages
dc.creator.none.fl_str_mv Arias Fernández, María Del Carmen
Whatley, R.C.
author Arias Fernández, María Del Carmen
author_facet Arias Fernández, María Del Carmen
Whatley, R.C.
author_role author
author2 Whatley, R.C.
author2_role author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 565.33
Early Jurassic
European Epicontinental Sea
Ostracod
Palaeobiogeography
Palaeoceanography
Paleontología
2416 Paleontología
topic 565.33
Early Jurassic
European Epicontinental Sea
Ostracod
Palaeobiogeography
Palaeoceanography
Paleontología
2416 Paleontología
description Palaeobiogeographic patterns of Early Jurassic ostracods from the northern and southern hemispheres (96 sections located in Europe, North Africa, Western Australia and North and South America) based on 243 species-level records document global patterns of distribution that can be compared to those previously published on ostracods from the European Epicontinental Sea and Tethyan and South Panthalassa areas. All described records of ostracods from both hemispheres spanning the Hettangian to Early Toarcian have been compiled and verified, and their patterns of origin and distribution have been interpreted. Jaccard coefficient of similarity was used to asses similarities among European, American and Tethyan ostracod shelf faunas. The numerical analysis shows a progressive longitudinal gradient in provincialism through the Early Jurassic, consistent with the northward drift of Tethyan ostracod faunas towards the European Epicontinental Sea and the southward movement of European taxa into Tethys and Panthalassa oceans. The spread of cosmopolitan species and extinction of endemic species, allied to the disappearance of geographical barriers, warmer climate conditions and rising sea levels can explain the reduction in ostracod diversity and the east-west provincialism throughout the Early Jurassic. Interchange between hemispheres, including bipolar distributions, are recognized from the Sinemurian time, pointing out that for most of the studied period, the climate worldwide was warm and tropical.
publishDate 2009
dc.date.none.fl_str_mv 2009
2009-01-01
2009
2009-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/44364
url https://hdl.handle.net/20.500.14352/44364
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Taylor & Francis
publisher.none.fl_str_mv Taylor & Francis
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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