A Late Cretaceous tuatara (Lepidosauria: Sphenodontinae) from South America
- Autores
- Apesteguía, Sebastián; Jones, M. E. H.
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Rhynchocephalia achieved a global distribution during the Mesozoic but the history of sphenodontines, the clade containing the extant genus Sphenodon (the New Zealand tuatara), remains poorly understood. Here, we describe a partial maxilla from the Late Cretaceous of Argentina bearing teeth that closely resemble those of modern Sphenodon. This material helps to fill in a notable gap in the fossil history of lepidosaurs because it represents the first evidence of a sphenodontine from South America and increases the number of known Late Cretaceous rhynchocephalian taxa from that region. The morphological disparity encompassed by these records is consistent with suggestions that rhynchocephalians remained diverse in the Late Cretaceous of South America despite a concurrent disappearance from Laurasia. Moreover, the new record supports the hypothesis that sphenodontines were once found widely throughout Gondwana, before its constituent landmasses began to separate about 80 million years ago. The extant Sphenodon probably represents a biogeographic remnant of this distribution, but whether its relatively large size and its ability to remain active at cold temperatures reflects a high latitude ancestry requires further examination.
Fil: Apesteguía, Sebastián. Universidad Maimónides. Área de Investigaciones Biomédicas y Biotecnológicas. Centro de Estudios Biomédicos, Biotecnológicos, Ambientales y de Diagnóstico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Jones, M. E. H.. Colegio Universitario de Londres; Reino Unido - Materia
-
CRETACEOUS
GONDWANA
PATAGONIA
SPHENODON
SPHENODONTINAE
TUATARA - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/189661
Ver los metadatos del registro completo
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A Late Cretaceous tuatara (Lepidosauria: Sphenodontinae) from South AmericaApesteguía, SebastiánJones, M. E. H.CRETACEOUSGONDWANAPATAGONIASPHENODONSPHENODONTINAETUATARAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Rhynchocephalia achieved a global distribution during the Mesozoic but the history of sphenodontines, the clade containing the extant genus Sphenodon (the New Zealand tuatara), remains poorly understood. Here, we describe a partial maxilla from the Late Cretaceous of Argentina bearing teeth that closely resemble those of modern Sphenodon. This material helps to fill in a notable gap in the fossil history of lepidosaurs because it represents the first evidence of a sphenodontine from South America and increases the number of known Late Cretaceous rhynchocephalian taxa from that region. The morphological disparity encompassed by these records is consistent with suggestions that rhynchocephalians remained diverse in the Late Cretaceous of South America despite a concurrent disappearance from Laurasia. Moreover, the new record supports the hypothesis that sphenodontines were once found widely throughout Gondwana, before its constituent landmasses began to separate about 80 million years ago. The extant Sphenodon probably represents a biogeographic remnant of this distribution, but whether its relatively large size and its ability to remain active at cold temperatures reflects a high latitude ancestry requires further examination.Fil: Apesteguía, Sebastián. Universidad Maimónides. Área de Investigaciones Biomédicas y Biotecnológicas. Centro de Estudios Biomédicos, Biotecnológicos, Ambientales y de Diagnóstico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Jones, M. E. H.. Colegio Universitario de Londres; Reino UnidoAcademic Press Ltd - Elsevier Science Ltd2012-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/189661Apesteguía, Sebastián; Jones, M. E. H.; A Late Cretaceous tuatara (Lepidosauria: Sphenodontinae) from South America; Academic Press Ltd - Elsevier Science Ltd; Cretaceous Research; 34; 10-2012; 154-1600195-6671CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0195667111001649info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cretres.2011.10.014info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:56:37Zoai:ri.conicet.gov.ar:11336/189661instacron: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:34982025-09-29 09:56:37.528CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
A Late Cretaceous tuatara (Lepidosauria: Sphenodontinae) from South America |
title |
A Late Cretaceous tuatara (Lepidosauria: Sphenodontinae) from South America |
spellingShingle |
A Late Cretaceous tuatara (Lepidosauria: Sphenodontinae) from South America Apesteguía, Sebastián CRETACEOUS GONDWANA PATAGONIA SPHENODON SPHENODONTINAE TUATARA |
title_short |
A Late Cretaceous tuatara (Lepidosauria: Sphenodontinae) from South America |
title_full |
A Late Cretaceous tuatara (Lepidosauria: Sphenodontinae) from South America |
title_fullStr |
A Late Cretaceous tuatara (Lepidosauria: Sphenodontinae) from South America |
title_full_unstemmed |
A Late Cretaceous tuatara (Lepidosauria: Sphenodontinae) from South America |
title_sort |
A Late Cretaceous tuatara (Lepidosauria: Sphenodontinae) from South America |
dc.creator.none.fl_str_mv |
Apesteguía, Sebastián Jones, M. E. H. |
author |
Apesteguía, Sebastián |
author_facet |
Apesteguía, Sebastián Jones, M. E. H. |
author_role |
author |
author2 |
Jones, M. E. H. |
author2_role |
author |
dc.subject.none.fl_str_mv |
CRETACEOUS GONDWANA PATAGONIA SPHENODON SPHENODONTINAE TUATARA |
topic |
CRETACEOUS GONDWANA PATAGONIA SPHENODON SPHENODONTINAE TUATARA |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Rhynchocephalia achieved a global distribution during the Mesozoic but the history of sphenodontines, the clade containing the extant genus Sphenodon (the New Zealand tuatara), remains poorly understood. Here, we describe a partial maxilla from the Late Cretaceous of Argentina bearing teeth that closely resemble those of modern Sphenodon. This material helps to fill in a notable gap in the fossil history of lepidosaurs because it represents the first evidence of a sphenodontine from South America and increases the number of known Late Cretaceous rhynchocephalian taxa from that region. The morphological disparity encompassed by these records is consistent with suggestions that rhynchocephalians remained diverse in the Late Cretaceous of South America despite a concurrent disappearance from Laurasia. Moreover, the new record supports the hypothesis that sphenodontines were once found widely throughout Gondwana, before its constituent landmasses began to separate about 80 million years ago. The extant Sphenodon probably represents a biogeographic remnant of this distribution, but whether its relatively large size and its ability to remain active at cold temperatures reflects a high latitude ancestry requires further examination. Fil: Apesteguía, Sebastián. Universidad Maimónides. Área de Investigaciones Biomédicas y Biotecnológicas. Centro de Estudios Biomédicos, Biotecnológicos, Ambientales y de Diagnóstico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Jones, M. E. H.. Colegio Universitario de Londres; Reino Unido |
description |
Rhynchocephalia achieved a global distribution during the Mesozoic but the history of sphenodontines, the clade containing the extant genus Sphenodon (the New Zealand tuatara), remains poorly understood. Here, we describe a partial maxilla from the Late Cretaceous of Argentina bearing teeth that closely resemble those of modern Sphenodon. This material helps to fill in a notable gap in the fossil history of lepidosaurs because it represents the first evidence of a sphenodontine from South America and increases the number of known Late Cretaceous rhynchocephalian taxa from that region. The morphological disparity encompassed by these records is consistent with suggestions that rhynchocephalians remained diverse in the Late Cretaceous of South America despite a concurrent disappearance from Laurasia. Moreover, the new record supports the hypothesis that sphenodontines were once found widely throughout Gondwana, before its constituent landmasses began to separate about 80 million years ago. The extant Sphenodon probably represents a biogeographic remnant of this distribution, but whether its relatively large size and its ability to remain active at cold temperatures reflects a high latitude ancestry requires further examination. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-10 |
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/11336/189661 Apesteguía, Sebastián; Jones, M. E. H.; A Late Cretaceous tuatara (Lepidosauria: Sphenodontinae) from South America; Academic Press Ltd - Elsevier Science Ltd; Cretaceous Research; 34; 10-2012; 154-160 0195-6671 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/189661 |
identifier_str_mv |
Apesteguía, Sebastián; Jones, M. E. H.; A Late Cretaceous tuatara (Lepidosauria: Sphenodontinae) from South America; Academic Press Ltd - Elsevier Science Ltd; Cretaceous Research; 34; 10-2012; 154-160 0195-6671 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0195667111001649 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cretres.2011.10.014 |
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 |
Academic Press Ltd - Elsevier Science Ltd |
publisher.none.fl_str_mv |
Academic Press Ltd - Elsevier Science Ltd |
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 |
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1844613699689512960 |
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13.070432 |