Evidence of anuran diversity in the La Colonia Formation (Upper Cretaceous), Chubut, Patagonia, Argentina

Autores
Muzzopappa, Paula; Varela, Julio Adrian
Año de publicación
2014
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The La Colonia Formation (Campanian-Maastrichtian), a sedimentary succession that represents a continental to marginal marine depositional environment, crops out along the southeastern margin of the Somuncurá Plateau in Chubut Province, Argentina. Several vertebrate groups (including fishes, anurans, turtles, plesiosaurs, snakes, dinosaurs, and mammals) have been reported in the fossil assemblages recovered from the middle part of this succession. Fieldwork during the last 15 years has provided new fossil localities and a great amount of vertebrate remains. Among the latter, some bones have been undoubtedly identified as belonging to anurans although their poor preservation precludes their accurate taxonomic assignment. The same applies to most of the rest of Late Cretaceous anuran fossil remains from Patagonia which, although abundant, are broken and disarticulated. The fragmentary nature of these remains obscures the taxonomic composition of the anuran fauna by the end of the Cretaceous in Patagonia, other than documenting the presence of pipids and neobatrachians. New remains collected in a thin bonebed at Norte de Cerro Bayo 2 Locality, along with previously recovered material from El Uruguayo Locality, reveal the presence of a variety of frogs. The evidence consists of three premaxillae (MPEF-PV 10890-8, MPEF-PV 10891-10) which, although incomplete, show such a significant morphological diversity so as to point to the presence of three different neobatrachian species. Further study of these remains might contribute substantially to our knowledge of the Patagonian batrachofauna in the Cretaceous, a key interval for anuran evolution considering the high speciation rate estimated by recent molecular analyses.
Fil: Muzzopappa, Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Varela, Julio Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina
XXVIII Jornadas Argentinas de Paleontología de Vertebrados
Argentina
Museo Paleontológico Ernesto Bachmann
Materia
Anurans
La Colonia Formation
Upper Cretaceous
Chubut
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/168383
Acceder
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spelling Evidence of anuran diversity in the La Colonia Formation (Upper Cretaceous), Chubut, Patagonia, ArgentinaMuzzopappa, PaulaVarela, Julio AdrianAnuransLa Colonia FormationUpper CretaceousChubuthttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The La Colonia Formation (Campanian-Maastrichtian), a sedimentary succession that represents a continental to marginal marine depositional environment, crops out along the southeastern margin of the Somuncurá Plateau in Chubut Province, Argentina. Several vertebrate groups (including fishes, anurans, turtles, plesiosaurs, snakes, dinosaurs, and mammals) have been reported in the fossil assemblages recovered from the middle part of this succession. Fieldwork during the last 15 years has provided new fossil localities and a great amount of vertebrate remains. Among the latter, some bones have been undoubtedly identified as belonging to anurans although their poor preservation precludes their accurate taxonomic assignment. The same applies to most of the rest of Late Cretaceous anuran fossil remains from Patagonia which, although abundant, are broken and disarticulated. The fragmentary nature of these remains obscures the taxonomic composition of the anuran fauna by the end of the Cretaceous in Patagonia, other than documenting the presence of pipids and neobatrachians. New remains collected in a thin bonebed at Norte de Cerro Bayo 2 Locality, along with previously recovered material from El Uruguayo Locality, reveal the presence of a variety of frogs. The evidence consists of three premaxillae (MPEF-PV 10890-8, MPEF-PV 10891-10) which, although incomplete, show such a significant morphological diversity so as to point to the presence of three different neobatrachian species. Further study of these remains might contribute substantially to our knowledge of the Patagonian batrachofauna in the Cretaceous, a key interval for anuran evolution considering the high speciation rate estimated by recent molecular analyses.Fil: Muzzopappa, Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Varela, Julio Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; ArgentinaXXVIII Jornadas Argentinas de Paleontología de VertebradosArgentinaMuseo Paleontológico Ernesto BachmannAsociación Paleontológica Argentina2014info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectJornadaJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/168383Evidence of anuran diversity in the La Colonia Formation (Upper Cretaceous), Chubut, Patagonia, Argentina; XXVIII Jornadas Argentinas de Paleontología de Vertebrados; Argentina; 2014; 18-18CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/2840Nacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:25:26Zoai:ri.conicet.gov.ar:11336/168383instacron: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:34982025-10-22 11:25:26.669CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Evidence of anuran diversity in the La Colonia Formation (Upper Cretaceous), Chubut, Patagonia, Argentina
title Evidence of anuran diversity in the La Colonia Formation (Upper Cretaceous), Chubut, Patagonia, Argentina
spellingShingle Evidence of anuran diversity in the La Colonia Formation (Upper Cretaceous), Chubut, Patagonia, Argentina
Muzzopappa, Paula
Anurans
La Colonia Formation
Upper Cretaceous
Chubut
title_short Evidence of anuran diversity in the La Colonia Formation (Upper Cretaceous), Chubut, Patagonia, Argentina
title_full Evidence of anuran diversity in the La Colonia Formation (Upper Cretaceous), Chubut, Patagonia, Argentina
title_fullStr Evidence of anuran diversity in the La Colonia Formation (Upper Cretaceous), Chubut, Patagonia, Argentina
title_full_unstemmed Evidence of anuran diversity in the La Colonia Formation (Upper Cretaceous), Chubut, Patagonia, Argentina
title_sort Evidence of anuran diversity in the La Colonia Formation (Upper Cretaceous), Chubut, Patagonia, Argentina
dc.creator.none.fl_str_mv Muzzopappa, Paula
Varela, Julio Adrian
author Muzzopappa, Paula
author_facet Muzzopappa, Paula
Varela, Julio Adrian
author_role author
author2 Varela, Julio Adrian
author2_role author
dc.subject.none.fl_str_mv Anurans
La Colonia Formation
Upper Cretaceous
Chubut
topic Anurans
La Colonia Formation
Upper Cretaceous
Chubut
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 La Colonia Formation (Campanian-Maastrichtian), a sedimentary succession that represents a continental to marginal marine depositional environment, crops out along the southeastern margin of the Somuncurá Plateau in Chubut Province, Argentina. Several vertebrate groups (including fishes, anurans, turtles, plesiosaurs, snakes, dinosaurs, and mammals) have been reported in the fossil assemblages recovered from the middle part of this succession. Fieldwork during the last 15 years has provided new fossil localities and a great amount of vertebrate remains. Among the latter, some bones have been undoubtedly identified as belonging to anurans although their poor preservation precludes their accurate taxonomic assignment. The same applies to most of the rest of Late Cretaceous anuran fossil remains from Patagonia which, although abundant, are broken and disarticulated. The fragmentary nature of these remains obscures the taxonomic composition of the anuran fauna by the end of the Cretaceous in Patagonia, other than documenting the presence of pipids and neobatrachians. New remains collected in a thin bonebed at Norte de Cerro Bayo 2 Locality, along with previously recovered material from El Uruguayo Locality, reveal the presence of a variety of frogs. The evidence consists of three premaxillae (MPEF-PV 10890-8, MPEF-PV 10891-10) which, although incomplete, show such a significant morphological diversity so as to point to the presence of three different neobatrachian species. Further study of these remains might contribute substantially to our knowledge of the Patagonian batrachofauna in the Cretaceous, a key interval for anuran evolution considering the high speciation rate estimated by recent molecular analyses.
Fil: Muzzopappa, Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Varela, Julio Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina
XXVIII Jornadas Argentinas de Paleontología de Vertebrados
Argentina
Museo Paleontológico Ernesto Bachmann
description The La Colonia Formation (Campanian-Maastrichtian), a sedimentary succession that represents a continental to marginal marine depositional environment, crops out along the southeastern margin of the Somuncurá Plateau in Chubut Province, Argentina. Several vertebrate groups (including fishes, anurans, turtles, plesiosaurs, snakes, dinosaurs, and mammals) have been reported in the fossil assemblages recovered from the middle part of this succession. Fieldwork during the last 15 years has provided new fossil localities and a great amount of vertebrate remains. Among the latter, some bones have been undoubtedly identified as belonging to anurans although their poor preservation precludes their accurate taxonomic assignment. The same applies to most of the rest of Late Cretaceous anuran fossil remains from Patagonia which, although abundant, are broken and disarticulated. The fragmentary nature of these remains obscures the taxonomic composition of the anuran fauna by the end of the Cretaceous in Patagonia, other than documenting the presence of pipids and neobatrachians. New remains collected in a thin bonebed at Norte de Cerro Bayo 2 Locality, along with previously recovered material from El Uruguayo Locality, reveal the presence of a variety of frogs. The evidence consists of three premaxillae (MPEF-PV 10890-8, MPEF-PV 10891-10) which, although incomplete, show such a significant morphological diversity so as to point to the presence of three different neobatrachian species. Further study of these remains might contribute substantially to our knowledge of the Patagonian batrachofauna in the Cretaceous, a key interval for anuran evolution considering the high speciation rate estimated by recent molecular analyses.
publishDate 2014
dc.date.none.fl_str_mv 2014
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Jornada
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/11336/168383
Evidence of anuran diversity in the La Colonia Formation (Upper Cretaceous), Chubut, Patagonia, Argentina; XXVIII Jornadas Argentinas de Paleontología de Vertebrados; Argentina; 2014; 18-18
CONICET Digital
CONICET
url http://hdl.handle.net/11336/168383
identifier_str_mv Evidence of anuran diversity in the La Colonia Formation (Upper Cretaceous), Chubut, Patagonia, Argentina; XXVIII Jornadas Argentinas de Paleontología de Vertebrados; Argentina; 2014; 18-18
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.ameghiniana.org.ar/index.php/ameghiniana/article/view/2840
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
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dc.coverage.none.fl_str_mv Nacional
dc.publisher.none.fl_str_mv Asociación Paleontológica Argentina
publisher.none.fl_str_mv Asociación Paleontológica Argentina
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