The diversity of Triassic South American sphenodontians: a new basal form, clevosaurs, and a revision of rhynchocephalian phylogeny

Autores
Chambi Trowell, Sofia A. V.; Martinelli, Agustín Guillermo; Whiteside, David I.; Romo de Vivar Martínez, Paulo Rodrigo; Bento Soares, Marina; Schultz, Cesar; Gill, Pamela G.; Benton, Michael J.; Rayfield, Emily J.
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Rhynchocephalians are a group of lizard-like diapsid reptiles that were very diverse during the Mesozoic but are now restricted to a single extant genus in New Zealand. Recent cladistic analyses have revealed two major clades, Eusphenodontia and the more crownward Neosphenodontia, but relationships of individual taxa have remained difficult to determine because of missing data and an unrevised data matrix. Here we drastically revise the established data matrix on rhynchocephalians by reassessing, evaluating, and adding new characters and operational taxonomic units, differing from any previous analyses in our goal to consider all known rhynchocephalians. In addition, we describe a new genus and species of an early eusphenodontian taxon from the Norian of southern Brazil, with a unique mosaic of plesiomorphic and apomorphic traits, and we re-examine the craniodental anatomy of the eusphenodontian Clevosaurus brasiliensis with µCT imaging, revealing a unique form of acrodonty amongst rhynchocephalians.
Fil: Chambi Trowell, Sofia A. V.. University of Bristol; Reino Unido
Fil: Martinelli, Agustín Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Whiteside, David I.. University of Bristol; Reino Unido
Fil: Romo de Vivar Martínez, Paulo Rodrigo. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Bento Soares, Marina. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Schultz, Cesar. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Gill, Pamela G.. University of Bristol; Reino Unido
Fil: Benton, Michael J.. University of Bristol; Reino Unido
Fil: Rayfield, Emily J.. University of Bristol; Reino Unido
Materia
CLADISTICS
CLEVOSAURUS
MORPHOLOGY
RHYNCHOCEPHALIA
SPHENODONTIA
TRIASSIC
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/171390
Acceder
id CONICETDig_1d8c4786dad97d32b2adbd486a7507d1
oai_identifier_str oai:ri.conicet.gov.ar:11336/171390
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The diversity of Triassic South American sphenodontians: a new basal form, clevosaurs, and a revision of rhynchocephalian phylogenyChambi Trowell, Sofia A. V.Martinelli, Agustín GuillermoWhiteside, David I.Romo de Vivar Martínez, Paulo RodrigoBento Soares, MarinaSchultz, CesarGill, Pamela G.Benton, Michael J.Rayfield, Emily J.CLADISTICSCLEVOSAURUSMORPHOLOGYRHYNCHOCEPHALIASPHENODONTIATRIASSIChttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Rhynchocephalians are a group of lizard-like diapsid reptiles that were very diverse during the Mesozoic but are now restricted to a single extant genus in New Zealand. Recent cladistic analyses have revealed two major clades, Eusphenodontia and the more crownward Neosphenodontia, but relationships of individual taxa have remained difficult to determine because of missing data and an unrevised data matrix. Here we drastically revise the established data matrix on rhynchocephalians by reassessing, evaluating, and adding new characters and operational taxonomic units, differing from any previous analyses in our goal to consider all known rhynchocephalians. In addition, we describe a new genus and species of an early eusphenodontian taxon from the Norian of southern Brazil, with a unique mosaic of plesiomorphic and apomorphic traits, and we re-examine the craniodental anatomy of the eusphenodontian Clevosaurus brasiliensis with µCT imaging, revealing a unique form of acrodonty amongst rhynchocephalians.Fil: Chambi Trowell, Sofia A. V.. University of Bristol; Reino UnidoFil: Martinelli, Agustín Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Whiteside, David I.. University of Bristol; Reino UnidoFil: Romo de Vivar Martínez, Paulo Rodrigo. Universidade Federal do Rio Grande do Sul; BrasilFil: Bento Soares, Marina. Universidade Federal do Rio Grande do Sul; BrasilFil: Schultz, Cesar. Universidade Federal do Rio Grande do Sul; BrasilFil: Gill, Pamela G.. University of Bristol; Reino UnidoFil: Benton, Michael J.. University of Bristol; Reino UnidoFil: Rayfield, Emily J.. University of Bristol; Reino UnidoTaylor & Francis2021-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/171390Chambi Trowell, Sofia A. V.; Martinelli, Agustín Guillermo; Whiteside, David I.; Romo de Vivar Martínez, Paulo Rodrigo; Bento Soares, Marina; et al.; The diversity of Triassic South American sphenodontians: a new basal form, clevosaurs, and a revision of rhynchocephalian phylogeny; Taylor & Francis; Journal of Systematic Palaeontology; 19; 11; 11-2021; 787-8201477-2019CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1080/14772019.2021.1976292info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/14772019.2021.1976292info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:02:57Zoai:ri.conicet.gov.ar:11336/171390instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:02:58.067CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The diversity of Triassic South American sphenodontians: a new basal form, clevosaurs, and a revision of rhynchocephalian phylogeny
title The diversity of Triassic South American sphenodontians: a new basal form, clevosaurs, and a revision of rhynchocephalian phylogeny
spellingShingle The diversity of Triassic South American sphenodontians: a new basal form, clevosaurs, and a revision of rhynchocephalian phylogeny
Chambi Trowell, Sofia A. V.
CLADISTICS
CLEVOSAURUS
MORPHOLOGY
RHYNCHOCEPHALIA
SPHENODONTIA
TRIASSIC
title_short The diversity of Triassic South American sphenodontians: a new basal form, clevosaurs, and a revision of rhynchocephalian phylogeny
title_full The diversity of Triassic South American sphenodontians: a new basal form, clevosaurs, and a revision of rhynchocephalian phylogeny
title_fullStr The diversity of Triassic South American sphenodontians: a new basal form, clevosaurs, and a revision of rhynchocephalian phylogeny
title_full_unstemmed The diversity of Triassic South American sphenodontians: a new basal form, clevosaurs, and a revision of rhynchocephalian phylogeny
title_sort The diversity of Triassic South American sphenodontians: a new basal form, clevosaurs, and a revision of rhynchocephalian phylogeny
dc.creator.none.fl_str_mv Chambi Trowell, Sofia A. V.
Martinelli, Agustín Guillermo
Whiteside, David I.
Romo de Vivar Martínez, Paulo Rodrigo
Bento Soares, Marina
Schultz, Cesar
Gill, Pamela G.
Benton, Michael J.
Rayfield, Emily J.
author Chambi Trowell, Sofia A. V.
author_facet Chambi Trowell, Sofia A. V.
Martinelli, Agustín Guillermo
Whiteside, David I.
Romo de Vivar Martínez, Paulo Rodrigo
Bento Soares, Marina
Schultz, Cesar
Gill, Pamela G.
Benton, Michael J.
Rayfield, Emily J.
author_role author
author2 Martinelli, Agustín Guillermo
Whiteside, David I.
Romo de Vivar Martínez, Paulo Rodrigo
Bento Soares, Marina
Schultz, Cesar
Gill, Pamela G.
Benton, Michael J.
Rayfield, Emily J.
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv CLADISTICS
CLEVOSAURUS
MORPHOLOGY
RHYNCHOCEPHALIA
SPHENODONTIA
TRIASSIC
topic CLADISTICS
CLEVOSAURUS
MORPHOLOGY
RHYNCHOCEPHALIA
SPHENODONTIA
TRIASSIC
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Rhynchocephalians are a group of lizard-like diapsid reptiles that were very diverse during the Mesozoic but are now restricted to a single extant genus in New Zealand. Recent cladistic analyses have revealed two major clades, Eusphenodontia and the more crownward Neosphenodontia, but relationships of individual taxa have remained difficult to determine because of missing data and an unrevised data matrix. Here we drastically revise the established data matrix on rhynchocephalians by reassessing, evaluating, and adding new characters and operational taxonomic units, differing from any previous analyses in our goal to consider all known rhynchocephalians. In addition, we describe a new genus and species of an early eusphenodontian taxon from the Norian of southern Brazil, with a unique mosaic of plesiomorphic and apomorphic traits, and we re-examine the craniodental anatomy of the eusphenodontian Clevosaurus brasiliensis with µCT imaging, revealing a unique form of acrodonty amongst rhynchocephalians.
Fil: Chambi Trowell, Sofia A. V.. University of Bristol; Reino Unido
Fil: Martinelli, Agustín Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Whiteside, David I.. University of Bristol; Reino Unido
Fil: Romo de Vivar Martínez, Paulo Rodrigo. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Bento Soares, Marina. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Schultz, Cesar. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Gill, Pamela G.. University of Bristol; Reino Unido
Fil: Benton, Michael J.. University of Bristol; Reino Unido
Fil: Rayfield, Emily J.. University of Bristol; Reino Unido
description Rhynchocephalians are a group of lizard-like diapsid reptiles that were very diverse during the Mesozoic but are now restricted to a single extant genus in New Zealand. Recent cladistic analyses have revealed two major clades, Eusphenodontia and the more crownward Neosphenodontia, but relationships of individual taxa have remained difficult to determine because of missing data and an unrevised data matrix. Here we drastically revise the established data matrix on rhynchocephalians by reassessing, evaluating, and adding new characters and operational taxonomic units, differing from any previous analyses in our goal to consider all known rhynchocephalians. In addition, we describe a new genus and species of an early eusphenodontian taxon from the Norian of southern Brazil, with a unique mosaic of plesiomorphic and apomorphic traits, and we re-examine the craniodental anatomy of the eusphenodontian Clevosaurus brasiliensis with µCT imaging, revealing a unique form of acrodonty amongst rhynchocephalians.
publishDate 2021
dc.date.none.fl_str_mv 2021-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/171390
Chambi Trowell, Sofia A. V.; Martinelli, Agustín Guillermo; Whiteside, David I.; Romo de Vivar Martínez, Paulo Rodrigo; Bento Soares, Marina; et al.; The diversity of Triassic South American sphenodontians: a new basal form, clevosaurs, and a revision of rhynchocephalian phylogeny; Taylor & Francis; Journal of Systematic Palaeontology; 19; 11; 11-2021; 787-820
1477-2019
CONICET Digital
CONICET
url http://hdl.handle.net/11336/171390
identifier_str_mv Chambi Trowell, Sofia A. V.; Martinelli, Agustín Guillermo; Whiteside, David I.; Romo de Vivar Martínez, Paulo Rodrigo; Bento Soares, Marina; et al.; The diversity of Triassic South American sphenodontians: a new basal form, clevosaurs, and a revision of rhynchocephalian phylogeny; Taylor & Francis; Journal of Systematic Palaeontology; 19; 11; 11-2021; 787-820
1477-2019
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1080/14772019.2021.1976292
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/14772019.2021.1976292
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Taylor & Francis
publisher.none.fl_str_mv Taylor & Francis
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842269776987029504
score 13.13397

Publicaciones similares