Paleogene pelomedusoid turtles from northwestern Argentina: a preliminary approach

Autores
de la Fuente, Marcelo Saul; Maniel, Ignacio Jorge; González Ruiz, Pablo
Año de publicación
2021
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The record of the Paleogene fossil pelomedusoid turtles in northwestern Argentina is scarce, with only one named species (Podocnemis argentinensis). These pelomedusoids have been discovered in several Paleocene, Eocene and Oligocene formations and localities of La Rioja (Puesto La Flecha Formation), Jujuy (Maíz Gordo, Lumbrera Formations), Tucumán (Río Loro Formation) and Salta (Gesteand Lumbrera Formations) provinces. Among the Paleogene specimens the plastron-based Podocnemis argentinensis from Maíz Gordo Formation at Quebrada Queñoal (Jujuy Province) was reconstructed by Cattoi and Freiberg in 1958 on the basis of a partial preserved plastron (holotype MACN 17988) and a referred specimen represented by a partial right epiplastron (MACN 16553) showing a simple gular-extragular scale pattern and a relatively narrow anterior plastral lobe. Two different pelomedusoid turtles in Casa Grande Area (Jujuy Province) were recovered. One of them found in outcrops of Maíz Gordo Formation at Quebrada del Puesto is assigned to an unnamed taxon of pelomedusoid characterized by a large sized, pit-decorated carapace. The other discovery is represented by several shell specimens (AMNH 3005, 9690, 9694, 9696, 9698, 25571, 25573,25575) from outcrops of the Maíz Gordo Formation exposed at Quebrada del Agujero (Jujuy Province)showing a plastral morphology similar to that of "Podocnemis" argentinensis, although they are smaller than the holotype. Among them, one skull associated with these small shells is preserved.This specimen (AMNH 9700) is characterized by a short beak, lateral orbits, interorbital groove absent, high maxilla, large vomer, pterygoid flange extended posterolaterally covering most of the pterygoid fossa, and a posterior roof elevation of the skull. These skull morphologies suggest that "Podocnemis" argentinensis from the Maíz Gordo Formation, is a podocnemidid species belonging to a different genus from Podocnemis. A skull and two shells (IBIGEO-P 107-108) represent a differenttaxon of Podocnemididae recently discovered from the Geste Formation (Eocene) in the proximity of San Antonio de Los Cobres (Salta Province). This new genus and species presents a different plastraland cranial morphology than ?Podocnemis? argentinensis. Among these characters we can list: a short and sub quadrangular anterior plastral lobe two times wider than long, angular-extragular scheme showing a punctual contact between the gular scute and humero-pectoral sulcus preventing midline contact of humeral scutes, a huge foramen palatinum posterius, and a short pterygoid flange that cover partially the cavum pterygoidei. These discoveries suggest a greater diversity than expected in the Paleogene pelomedusoid assemblage of northwestern Argentina.
Fil: de la Fuente, Marcelo Saul. Universidad Tecnologica Nacional. Facultad Reg.san Rafael. Instituto de Evolucion, Ecologia Historica y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mendoza. Instituto de Evolucion, Ecologia Historica y Ambiente.; Argentina
Fil: Maniel, Ignacio Jorge. Universidad Tecnologica Nacional. Facultad Reg.san Rafael. Instituto de Evolucion, Ecologia Historica y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mendoza. Instituto de Evolucion, Ecologia Historica y Ambiente.; Argentina
Fil: González Ruiz, Pablo. Universidad Tecnologica Nacional. Facultad Reg.san Rafael. Instituto de Evolucion, Ecologia Historica y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mendoza. Instituto de Evolucion, Ecologia Historica y Ambiente.; Argentina
Simposio de Evolución de Tortugas
Trelew
Argentina
Museo Paleontológico Egidio Feruglio
Materia
TESTUDINES
PELOMEDUSOIDES
PALEOGENE
NOA
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/178570
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Paleogene pelomedusoid turtles from northwestern Argentina: a preliminary approachde la Fuente, Marcelo SaulManiel, Ignacio JorgeGonzález Ruiz, PabloTESTUDINESPELOMEDUSOIDESPALEOGENENOAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The record of the Paleogene fossil pelomedusoid turtles in northwestern Argentina is scarce, with only one named species (Podocnemis argentinensis). These pelomedusoids have been discovered in several Paleocene, Eocene and Oligocene formations and localities of La Rioja (Puesto La Flecha Formation), Jujuy (Maíz Gordo, Lumbrera Formations), Tucumán (Río Loro Formation) and Salta (Gesteand Lumbrera Formations) provinces. Among the Paleogene specimens the plastron-based Podocnemis argentinensis from Maíz Gordo Formation at Quebrada Queñoal (Jujuy Province) was reconstructed by Cattoi and Freiberg in 1958 on the basis of a partial preserved plastron (holotype MACN 17988) and a referred specimen represented by a partial right epiplastron (MACN 16553) showing a simple gular-extragular scale pattern and a relatively narrow anterior plastral lobe. Two different pelomedusoid turtles in Casa Grande Area (Jujuy Province) were recovered. One of them found in outcrops of Maíz Gordo Formation at Quebrada del Puesto is assigned to an unnamed taxon of pelomedusoid characterized by a large sized, pit-decorated carapace. The other discovery is represented by several shell specimens (AMNH 3005, 9690, 9694, 9696, 9698, 25571, 25573,25575) from outcrops of the Maíz Gordo Formation exposed at Quebrada del Agujero (Jujuy Province)showing a plastral morphology similar to that of "Podocnemis" argentinensis, although they are smaller than the holotype. Among them, one skull associated with these small shells is preserved.This specimen (AMNH 9700) is characterized by a short beak, lateral orbits, interorbital groove absent, high maxilla, large vomer, pterygoid flange extended posterolaterally covering most of the pterygoid fossa, and a posterior roof elevation of the skull. These skull morphologies suggest that "Podocnemis" argentinensis from the Maíz Gordo Formation, is a podocnemidid species belonging to a different genus from Podocnemis. A skull and two shells (IBIGEO-P 107-108) represent a differenttaxon of Podocnemididae recently discovered from the Geste Formation (Eocene) in the proximity of San Antonio de Los Cobres (Salta Province). This new genus and species presents a different plastraland cranial morphology than ?Podocnemis? argentinensis. Among these characters we can list: a short and sub quadrangular anterior plastral lobe two times wider than long, angular-extragular scheme showing a punctual contact between the gular scute and humero-pectoral sulcus preventing midline contact of humeral scutes, a huge foramen palatinum posterius, and a short pterygoid flange that cover partially the cavum pterygoidei. These discoveries suggest a greater diversity than expected in the Paleogene pelomedusoid assemblage of northwestern Argentina.Fil: de la Fuente, Marcelo Saul. Universidad Tecnologica Nacional. Facultad Reg.san Rafael. Instituto de Evolucion, Ecologia Historica y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mendoza. Instituto de Evolucion, Ecologia Historica y Ambiente.; ArgentinaFil: Maniel, Ignacio Jorge. Universidad Tecnologica Nacional. Facultad Reg.san Rafael. Instituto de Evolucion, Ecologia Historica y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mendoza. Instituto de Evolucion, Ecologia Historica y Ambiente.; ArgentinaFil: González Ruiz, Pablo. Universidad Tecnologica Nacional. Facultad Reg.san Rafael. Instituto de Evolucion, Ecologia Historica y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mendoza. Instituto de Evolucion, Ecologia Historica y Ambiente.; ArgentinaSimposio de Evolución de TortugasTrelewArgentinaMuseo Paleontológico Egidio FeruglioAsociación Paleontológica Argentina2021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectSimposioJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/178570Paleogene pelomedusoid turtles from northwestern Argentina: a preliminary approach; Simposio de Evolución de Tortugas; Trelew; Argentina; 2021; 75-752469-0228CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.peapaleontologica.org.ar/index.php/peapa/article/view/404info:eu-repo/semantics/altIdentifier/doi/10.5710/PEAPA.02.12.2021.404Internacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:53:30Zoai:ri.conicet.gov.ar:11336/178570instacron: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 09:53:30.41CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Paleogene pelomedusoid turtles from northwestern Argentina: a preliminary approach
title Paleogene pelomedusoid turtles from northwestern Argentina: a preliminary approach
spellingShingle Paleogene pelomedusoid turtles from northwestern Argentina: a preliminary approach
de la Fuente, Marcelo Saul
TESTUDINES
PELOMEDUSOIDES
PALEOGENE
NOA
title_short Paleogene pelomedusoid turtles from northwestern Argentina: a preliminary approach
title_full Paleogene pelomedusoid turtles from northwestern Argentina: a preliminary approach
title_fullStr Paleogene pelomedusoid turtles from northwestern Argentina: a preliminary approach
title_full_unstemmed Paleogene pelomedusoid turtles from northwestern Argentina: a preliminary approach
title_sort Paleogene pelomedusoid turtles from northwestern Argentina: a preliminary approach
dc.creator.none.fl_str_mv de la Fuente, Marcelo Saul
Maniel, Ignacio Jorge
González Ruiz, Pablo
author de la Fuente, Marcelo Saul
author_facet de la Fuente, Marcelo Saul
Maniel, Ignacio Jorge
González Ruiz, Pablo
author_role author
author2 Maniel, Ignacio Jorge
González Ruiz, Pablo
author2_role author
author
dc.subject.none.fl_str_mv TESTUDINES
PELOMEDUSOIDES
PALEOGENE
NOA
topic TESTUDINES
PELOMEDUSOIDES
PALEOGENE
NOA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The record of the Paleogene fossil pelomedusoid turtles in northwestern Argentina is scarce, with only one named species (Podocnemis argentinensis). These pelomedusoids have been discovered in several Paleocene, Eocene and Oligocene formations and localities of La Rioja (Puesto La Flecha Formation), Jujuy (Maíz Gordo, Lumbrera Formations), Tucumán (Río Loro Formation) and Salta (Gesteand Lumbrera Formations) provinces. Among the Paleogene specimens the plastron-based Podocnemis argentinensis from Maíz Gordo Formation at Quebrada Queñoal (Jujuy Province) was reconstructed by Cattoi and Freiberg in 1958 on the basis of a partial preserved plastron (holotype MACN 17988) and a referred specimen represented by a partial right epiplastron (MACN 16553) showing a simple gular-extragular scale pattern and a relatively narrow anterior plastral lobe. Two different pelomedusoid turtles in Casa Grande Area (Jujuy Province) were recovered. One of them found in outcrops of Maíz Gordo Formation at Quebrada del Puesto is assigned to an unnamed taxon of pelomedusoid characterized by a large sized, pit-decorated carapace. The other discovery is represented by several shell specimens (AMNH 3005, 9690, 9694, 9696, 9698, 25571, 25573,25575) from outcrops of the Maíz Gordo Formation exposed at Quebrada del Agujero (Jujuy Province)showing a plastral morphology similar to that of "Podocnemis" argentinensis, although they are smaller than the holotype. Among them, one skull associated with these small shells is preserved.This specimen (AMNH 9700) is characterized by a short beak, lateral orbits, interorbital groove absent, high maxilla, large vomer, pterygoid flange extended posterolaterally covering most of the pterygoid fossa, and a posterior roof elevation of the skull. These skull morphologies suggest that "Podocnemis" argentinensis from the Maíz Gordo Formation, is a podocnemidid species belonging to a different genus from Podocnemis. A skull and two shells (IBIGEO-P 107-108) represent a differenttaxon of Podocnemididae recently discovered from the Geste Formation (Eocene) in the proximity of San Antonio de Los Cobres (Salta Province). This new genus and species presents a different plastraland cranial morphology than ?Podocnemis? argentinensis. Among these characters we can list: a short and sub quadrangular anterior plastral lobe two times wider than long, angular-extragular scheme showing a punctual contact between the gular scute and humero-pectoral sulcus preventing midline contact of humeral scutes, a huge foramen palatinum posterius, and a short pterygoid flange that cover partially the cavum pterygoidei. These discoveries suggest a greater diversity than expected in the Paleogene pelomedusoid assemblage of northwestern Argentina.
Fil: de la Fuente, Marcelo Saul. Universidad Tecnologica Nacional. Facultad Reg.san Rafael. Instituto de Evolucion, Ecologia Historica y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mendoza. Instituto de Evolucion, Ecologia Historica y Ambiente.; Argentina
Fil: Maniel, Ignacio Jorge. Universidad Tecnologica Nacional. Facultad Reg.san Rafael. Instituto de Evolucion, Ecologia Historica y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mendoza. Instituto de Evolucion, Ecologia Historica y Ambiente.; Argentina
Fil: González Ruiz, Pablo. Universidad Tecnologica Nacional. Facultad Reg.san Rafael. Instituto de Evolucion, Ecologia Historica y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mendoza. Instituto de Evolucion, Ecologia Historica y Ambiente.; Argentina
Simposio de Evolución de Tortugas
Trelew
Argentina
Museo Paleontológico Egidio Feruglio
description The record of the Paleogene fossil pelomedusoid turtles in northwestern Argentina is scarce, with only one named species (Podocnemis argentinensis). These pelomedusoids have been discovered in several Paleocene, Eocene and Oligocene formations and localities of La Rioja (Puesto La Flecha Formation), Jujuy (Maíz Gordo, Lumbrera Formations), Tucumán (Río Loro Formation) and Salta (Gesteand Lumbrera Formations) provinces. Among the Paleogene specimens the plastron-based Podocnemis argentinensis from Maíz Gordo Formation at Quebrada Queñoal (Jujuy Province) was reconstructed by Cattoi and Freiberg in 1958 on the basis of a partial preserved plastron (holotype MACN 17988) and a referred specimen represented by a partial right epiplastron (MACN 16553) showing a simple gular-extragular scale pattern and a relatively narrow anterior plastral lobe. Two different pelomedusoid turtles in Casa Grande Area (Jujuy Province) were recovered. One of them found in outcrops of Maíz Gordo Formation at Quebrada del Puesto is assigned to an unnamed taxon of pelomedusoid characterized by a large sized, pit-decorated carapace. The other discovery is represented by several shell specimens (AMNH 3005, 9690, 9694, 9696, 9698, 25571, 25573,25575) from outcrops of the Maíz Gordo Formation exposed at Quebrada del Agujero (Jujuy Province)showing a plastral morphology similar to that of "Podocnemis" argentinensis, although they are smaller than the holotype. Among them, one skull associated with these small shells is preserved.This specimen (AMNH 9700) is characterized by a short beak, lateral orbits, interorbital groove absent, high maxilla, large vomer, pterygoid flange extended posterolaterally covering most of the pterygoid fossa, and a posterior roof elevation of the skull. These skull morphologies suggest that "Podocnemis" argentinensis from the Maíz Gordo Formation, is a podocnemidid species belonging to a different genus from Podocnemis. A skull and two shells (IBIGEO-P 107-108) represent a differenttaxon of Podocnemididae recently discovered from the Geste Formation (Eocene) in the proximity of San Antonio de Los Cobres (Salta Province). This new genus and species presents a different plastraland cranial morphology than ?Podocnemis? argentinensis. Among these characters we can list: a short and sub quadrangular anterior plastral lobe two times wider than long, angular-extragular scheme showing a punctual contact between the gular scute and humero-pectoral sulcus preventing midline contact of humeral scutes, a huge foramen palatinum posterius, and a short pterygoid flange that cover partially the cavum pterygoidei. These discoveries suggest a greater diversity than expected in the Paleogene pelomedusoid assemblage of northwestern Argentina.
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Simposio
Journal
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/178570
Paleogene pelomedusoid turtles from northwestern Argentina: a preliminary approach; Simposio de Evolución de Tortugas; Trelew; Argentina; 2021; 75-75
2469-0228
CONICET Digital
CONICET
url http://hdl.handle.net/11336/178570
identifier_str_mv Paleogene pelomedusoid turtles from northwestern Argentina: a preliminary approach; Simposio de Evolución de Tortugas; Trelew; Argentina; 2021; 75-75
2469-0228
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.peapaleontologica.org.ar/index.php/peapa/article/view/404
info:eu-repo/semantics/altIdentifier/doi/10.5710/PEAPA.02.12.2021.404
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dc.format.none.fl_str_mv application/pdf
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application/pdf
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dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv Asociación Paleontológica Argentina
publisher.none.fl_str_mv Asociación Paleontológica Argentina
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
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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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