A new species of basal rhynchosaur (Diapsida: Archosauromorpha) from the early Middle Triassic of South Africa, and the early evolution of Rhynchosauria

Detalhes bibliográficos
Autor(a) principal: Butler, Richard J.
Data de Publicação: 2015
Outros Autores: Ezcurra, Martín D., Montefeltro, Felipe C. [UNESP], Samathi, Adun, Sobral, Gabriela
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1111/zoj.12246
http://hdl.handle.net/11449/167867
Resumo: Rhynchosauria was an important clade of herbivorous archosauromorph reptiles during the Triassic, with a worldwide distribution. We describe a new genus and species of early rhynchosaur, Eohyosaurus wolvaardti gen. et sp. nov., from the early Middle Triassic (early Anisian) CynognathusAssemblage Zone (Subzone B) of the Karoo Supergroup, South Africa. Eohyosaurus wolvaardti is known from a single skull, and is recovered as the sister taxon of Rhynchosauridae in a new phylogenetic analysis. CynognathusSubzone B has previously yielded the stratigraphically oldest well-understood rhynchosaur species, Mesosuchus browni and Howesia browni. Eohyosaurus wolvaardti increases the rhynchosaur diversity within this stratigraphical horizon to three species. Intriguingly, all currently confirmed rhynchosaur occurrences from the Early Triassic to earliest Middle Triassic are from South Africa. This may suggest a relatively restricted palaeogeographical distribution for early rhynchosaurs, followed by a global dispersal of rhynchosaurids during the Middle Triassic.
id UNSP_3bbd066b1a38ea54cedeaddd8073e3c1
oai_identifier_str oai:repositorio.unesp.br:11449/167867
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling A new species of basal rhynchosaur (Diapsida: Archosauromorpha) from the early Middle Triassic of South Africa, and the early evolution of RhynchosauriaAnisianBurgersdorp FormationCynognathus assemblage zonePhylogenyRhynchosauridaeRhynchosauria was an important clade of herbivorous archosauromorph reptiles during the Triassic, with a worldwide distribution. We describe a new genus and species of early rhynchosaur, Eohyosaurus wolvaardti gen. et sp. nov., from the early Middle Triassic (early Anisian) CynognathusAssemblage Zone (Subzone B) of the Karoo Supergroup, South Africa. Eohyosaurus wolvaardti is known from a single skull, and is recovered as the sister taxon of Rhynchosauridae in a new phylogenetic analysis. CynognathusSubzone B has previously yielded the stratigraphically oldest well-understood rhynchosaur species, Mesosuchus browni and Howesia browni. Eohyosaurus wolvaardti increases the rhynchosaur diversity within this stratigraphical horizon to three species. Intriguingly, all currently confirmed rhynchosaur occurrences from the Early Triassic to earliest Middle Triassic are from South Africa. This may suggest a relatively restricted palaeogeographical distribution for early rhynchosaurs, followed by a global dispersal of rhynchosaurids during the Middle Triassic.School of Geography Earth and Environmental Sciences University of BirminghamGeoBio-Center Ludwig-Maximilians-Universität München, Richard-Wagner-Str. 10Departamento de Biologia e Zootecnia UNESP, Rua Monção 226Division of Paleontology Steinmann Institute University of Bonn, Nussallee 8Museum für Naturkunde Berlin Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Invalidenstraße 43Departamento de Biologia e Zootecnia UNESP, Rua Monção 226University of BirminghamLudwig-Maximilians-Universität MünchenUniversidade Estadual Paulista (Unesp)University of BonnLeibniz-Institut für Evolutions- und BiodiversitätsforschungButler, Richard J.Ezcurra, Martín D.Montefeltro, Felipe C. [UNESP]Samathi, AdunSobral, Gabriela2018-12-11T16:38:39Z2018-12-11T16:38:39Z2015-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article571-588application/pdfhttp://dx.doi.org/10.1111/zoj.12246Zoological Journal of the Linnean Society, v. 174, n. 3, p. 571-588, 2015.1096-36420024-4082http://hdl.handle.net/11449/16786710.1111/zoj.122462-s2.0-849318250342-s2.0-84931825034.pdf93133328271517140000-0001-6519-8546Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengZoological Journal of the Linnean Society1,1881,188info:eu-repo/semantics/openAccess2023-10-30T06:08:26Zoai:repositorio.unesp.br:11449/167867Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:26:37.120360Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv A new species of basal rhynchosaur (Diapsida: Archosauromorpha) from the early Middle Triassic of South Africa, and the early evolution of Rhynchosauria
title A new species of basal rhynchosaur (Diapsida: Archosauromorpha) from the early Middle Triassic of South Africa, and the early evolution of Rhynchosauria
spellingShingle A new species of basal rhynchosaur (Diapsida: Archosauromorpha) from the early Middle Triassic of South Africa, and the early evolution of Rhynchosauria
Butler, Richard J.
Anisian
Burgersdorp Formation
Cynognathus assemblage zone
Phylogeny
Rhynchosauridae
title_short A new species of basal rhynchosaur (Diapsida: Archosauromorpha) from the early Middle Triassic of South Africa, and the early evolution of Rhynchosauria
title_full A new species of basal rhynchosaur (Diapsida: Archosauromorpha) from the early Middle Triassic of South Africa, and the early evolution of Rhynchosauria
title_fullStr A new species of basal rhynchosaur (Diapsida: Archosauromorpha) from the early Middle Triassic of South Africa, and the early evolution of Rhynchosauria
title_full_unstemmed A new species of basal rhynchosaur (Diapsida: Archosauromorpha) from the early Middle Triassic of South Africa, and the early evolution of Rhynchosauria
title_sort A new species of basal rhynchosaur (Diapsida: Archosauromorpha) from the early Middle Triassic of South Africa, and the early evolution of Rhynchosauria
author Butler, Richard J.
author_facet Butler, Richard J.
Ezcurra, Martín D.
Montefeltro, Felipe C. [UNESP]
Samathi, Adun
Sobral, Gabriela
author_role author
author2 Ezcurra, Martín D.
Montefeltro, Felipe C. [UNESP]
Samathi, Adun
Sobral, Gabriela
author2_role author
author
author
author
dc.contributor.none.fl_str_mv University of Birmingham
Ludwig-Maximilians-Universität München
Universidade Estadual Paulista (Unesp)
University of Bonn
Leibniz-Institut für Evolutions- und Biodiversitätsforschung
dc.contributor.author.fl_str_mv Butler, Richard J.
Ezcurra, Martín D.
Montefeltro, Felipe C. [UNESP]
Samathi, Adun
Sobral, Gabriela
dc.subject.por.fl_str_mv Anisian
Burgersdorp Formation
Cynognathus assemblage zone
Phylogeny
Rhynchosauridae
topic Anisian
Burgersdorp Formation
Cynognathus assemblage zone
Phylogeny
Rhynchosauridae
description Rhynchosauria was an important clade of herbivorous archosauromorph reptiles during the Triassic, with a worldwide distribution. We describe a new genus and species of early rhynchosaur, Eohyosaurus wolvaardti gen. et sp. nov., from the early Middle Triassic (early Anisian) CynognathusAssemblage Zone (Subzone B) of the Karoo Supergroup, South Africa. Eohyosaurus wolvaardti is known from a single skull, and is recovered as the sister taxon of Rhynchosauridae in a new phylogenetic analysis. CynognathusSubzone B has previously yielded the stratigraphically oldest well-understood rhynchosaur species, Mesosuchus browni and Howesia browni. Eohyosaurus wolvaardti increases the rhynchosaur diversity within this stratigraphical horizon to three species. Intriguingly, all currently confirmed rhynchosaur occurrences from the Early Triassic to earliest Middle Triassic are from South Africa. This may suggest a relatively restricted palaeogeographical distribution for early rhynchosaurs, followed by a global dispersal of rhynchosaurids during the Middle Triassic.
publishDate 2015
dc.date.none.fl_str_mv 2015-07-01
2018-12-11T16:38:39Z
2018-12-11T16:38:39Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1111/zoj.12246
Zoological Journal of the Linnean Society, v. 174, n. 3, p. 571-588, 2015.
1096-3642
0024-4082
http://hdl.handle.net/11449/167867
10.1111/zoj.12246
2-s2.0-84931825034
2-s2.0-84931825034.pdf
9313332827151714
0000-0001-6519-8546
url http://dx.doi.org/10.1111/zoj.12246
http://hdl.handle.net/11449/167867
identifier_str_mv Zoological Journal of the Linnean Society, v. 174, n. 3, p. 571-588, 2015.
1096-3642
0024-4082
10.1111/zoj.12246
2-s2.0-84931825034
2-s2.0-84931825034.pdf
9313332827151714
0000-0001-6519-8546
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Zoological Journal of the Linnean Society
1,188
1,188
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 571-588
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808128652975538176

Registros relacionados