A new, nearly complete stem turtle from the Jurassic of South America with implications for turtle evolution
- Autores
- Sterli, Juliana
- Año de publicación
- 2008
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Turtles are known since the Upper Triassic (210 million years old) however fossils recording the first steps of turtle evolution are scarce and often fragmentary. As a consequence, the main discussion nowadays is if living turtles (Testudines) originated during the Late Triassic (210 myo) or during the Middle to Late Jurassic (~160 myo). The discovery of the new fossil turtle (Condorchelys antiqua gen. et sp. nov.) from the Middle to Upper Jurassic (~160-146 myo) of South America (Patagonia, Argentina) presented here sheds new light on early turtle evolution. An updated cladistic analysis of turtles shows that C. antiqua and other fossil turtles are not crown turtles, but are stem turtles. This cladistic analysis also shows that stem turtles were more diverse than previously thought and that until the Middle to Upper Jurassic there were turtles without the modern jaw closure mechanism.
Fil: Sterli, Juliana. Provincia de Mendoza. Municipalidad de San Rafael. Museo de Historia Natural de San Rafael; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina - Materia
-
Testudinata
anatomy
phylogeny
Cañadón Asfalto Formation - 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:11336/244619
Ver los metadatos del registro completo
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A new, nearly complete stem turtle from the Jurassic of South America with implications for turtle evolutionSterli, JulianaTestudinataanatomyphylogenyCañadón Asfalto Formationhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Turtles are known since the Upper Triassic (210 million years old) however fossils recording the first steps of turtle evolution are scarce and often fragmentary. As a consequence, the main discussion nowadays is if living turtles (Testudines) originated during the Late Triassic (210 myo) or during the Middle to Late Jurassic (~160 myo). The discovery of the new fossil turtle (Condorchelys antiqua gen. et sp. nov.) from the Middle to Upper Jurassic (~160-146 myo) of South America (Patagonia, Argentina) presented here sheds new light on early turtle evolution. An updated cladistic analysis of turtles shows that C. antiqua and other fossil turtles are not crown turtles, but are stem turtles. This cladistic analysis also shows that stem turtles were more diverse than previously thought and that until the Middle to Upper Jurassic there were turtles without the modern jaw closure mechanism.Fil: Sterli, Juliana. Provincia de Mendoza. Municipalidad de San Rafael. Museo de Historia Natural de San Rafael; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaThe Royal Society2008-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/244619Sterli, Juliana; A new, nearly complete stem turtle from the Jurassic of South America with implications for turtle evolution; The Royal Society; Biology Letters; 4; 3; 3-2008; 286-2891744-9561CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://royalsocietypublishing.org/doi/10.1098/rsbl.2008.0022info:eu-repo/semantics/altIdentifier/doi/10.1098/rsbl.2008.0022info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:59:25Zoai:ri.conicet.gov.ar:11336/244619instacron: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 09:59:26.04CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
A new, nearly complete stem turtle from the Jurassic of South America with implications for turtle evolution |
title |
A new, nearly complete stem turtle from the Jurassic of South America with implications for turtle evolution |
spellingShingle |
A new, nearly complete stem turtle from the Jurassic of South America with implications for turtle evolution Sterli, Juliana Testudinata anatomy phylogeny Cañadón Asfalto Formation |
title_short |
A new, nearly complete stem turtle from the Jurassic of South America with implications for turtle evolution |
title_full |
A new, nearly complete stem turtle from the Jurassic of South America with implications for turtle evolution |
title_fullStr |
A new, nearly complete stem turtle from the Jurassic of South America with implications for turtle evolution |
title_full_unstemmed |
A new, nearly complete stem turtle from the Jurassic of South America with implications for turtle evolution |
title_sort |
A new, nearly complete stem turtle from the Jurassic of South America with implications for turtle evolution |
dc.creator.none.fl_str_mv |
Sterli, Juliana |
author |
Sterli, Juliana |
author_facet |
Sterli, Juliana |
author_role |
author |
dc.subject.none.fl_str_mv |
Testudinata anatomy phylogeny Cañadón Asfalto Formation |
topic |
Testudinata anatomy phylogeny Cañadón Asfalto Formation |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Turtles are known since the Upper Triassic (210 million years old) however fossils recording the first steps of turtle evolution are scarce and often fragmentary. As a consequence, the main discussion nowadays is if living turtles (Testudines) originated during the Late Triassic (210 myo) or during the Middle to Late Jurassic (~160 myo). The discovery of the new fossil turtle (Condorchelys antiqua gen. et sp. nov.) from the Middle to Upper Jurassic (~160-146 myo) of South America (Patagonia, Argentina) presented here sheds new light on early turtle evolution. An updated cladistic analysis of turtles shows that C. antiqua and other fossil turtles are not crown turtles, but are stem turtles. This cladistic analysis also shows that stem turtles were more diverse than previously thought and that until the Middle to Upper Jurassic there were turtles without the modern jaw closure mechanism. Fil: Sterli, Juliana. Provincia de Mendoza. Municipalidad de San Rafael. Museo de Historia Natural de San Rafael; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
description |
Turtles are known since the Upper Triassic (210 million years old) however fossils recording the first steps of turtle evolution are scarce and often fragmentary. As a consequence, the main discussion nowadays is if living turtles (Testudines) originated during the Late Triassic (210 myo) or during the Middle to Late Jurassic (~160 myo). The discovery of the new fossil turtle (Condorchelys antiqua gen. et sp. nov.) from the Middle to Upper Jurassic (~160-146 myo) of South America (Patagonia, Argentina) presented here sheds new light on early turtle evolution. An updated cladistic analysis of turtles shows that C. antiqua and other fossil turtles are not crown turtles, but are stem turtles. This cladistic analysis also shows that stem turtles were more diverse than previously thought and that until the Middle to Upper Jurassic there were turtles without the modern jaw closure mechanism. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-03 |
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/11336/244619 Sterli, Juliana; A new, nearly complete stem turtle from the Jurassic of South America with implications for turtle evolution; The Royal Society; Biology Letters; 4; 3; 3-2008; 286-289 1744-9561 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/244619 |
identifier_str_mv |
Sterli, Juliana; A new, nearly complete stem turtle from the Jurassic of South America with implications for turtle evolution; The Royal Society; Biology Letters; 4; 3; 3-2008; 286-289 1744-9561 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://royalsocietypublishing.org/doi/10.1098/rsbl.2008.0022 info:eu-repo/semantics/altIdentifier/doi/10.1098/rsbl.2008.0022 |
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 |
The Royal Society |
publisher.none.fl_str_mv |
The Royal Society |
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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1842269579464671232 |
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13.13397 |