A Pleistocene giant river otter from Argentina: Remarks on the fossil record and phylogenetic analysis

Autores
Prevosti, Francisco Juan; Ferrero, Brenda Soledad
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The fossil record of Neotropical Lutrinae is very incomplete, with a few specimens of Lontra and three records of Pteronura. The published records of Pteronura correspond to remains of Pteronura sp. from Lujanian beds in Entre Ríos province (Argentina) and P. brasiliensis found in the "Late Pleistocene" of Brazil, but they lack stratigraphic context and their age could range from at least 380-0.9 Ka. P. brasiliensis, the giant river otter, inhabits rivers and lakes of northern central South America, and has been related to the North American fossil otter Satherium. In this work we describe and compare a very complete specimen of Pteronura found in Entre Rios province using classical morphological descriptive and multivariate analyses, discuss the importance of this specimen for the fossil record of the taxon, and perform a preliminary phylogenetic analysis. The specimen agrees in morphometric and qualitative characters with the recent species P. brasiliensis, but is slightly larger and presents some minor differences in skull and dental morphology. These differences are interpreted as intraspecific variation, thus the fossil is interpreted as P. brasifiensis. In the phylogenetic analysis, the studied specimen clusters with P. brasiliensis, corroborating the taxonomic determination and supporting a relationship between Satherium and Pteronura. The specimen is the first fossil record of the genus for Argentina, and the oldest corroborated record, with a 130-125 Ka tentative age.
Fil: Prevosti, Francisco Juan. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
Fil: Ferrero, Brenda Soledad. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina
Materia
Carnivora
Mustelidae
Fossil
Entre Ríos
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:11336/80190
Acceder
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network_name_str CONICET Digital (CONICET)
spelling A Pleistocene giant river otter from Argentina: Remarks on the fossil record and phylogenetic analysisPrevosti, Francisco JuanFerrero, Brenda SoledadCarnivoraMustelidaeFossilEntre Ríoshttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The fossil record of Neotropical Lutrinae is very incomplete, with a few specimens of Lontra and three records of Pteronura. The published records of Pteronura correspond to remains of Pteronura sp. from Lujanian beds in Entre Ríos province (Argentina) and P. brasiliensis found in the "Late Pleistocene" of Brazil, but they lack stratigraphic context and their age could range from at least 380-0.9 Ka. P. brasiliensis, the giant river otter, inhabits rivers and lakes of northern central South America, and has been related to the North American fossil otter Satherium. In this work we describe and compare a very complete specimen of Pteronura found in Entre Rios province using classical morphological descriptive and multivariate analyses, discuss the importance of this specimen for the fossil record of the taxon, and perform a preliminary phylogenetic analysis. The specimen agrees in morphometric and qualitative characters with the recent species P. brasiliensis, but is slightly larger and presents some minor differences in skull and dental morphology. These differences are interpreted as intraspecific variation, thus the fossil is interpreted as P. brasifiensis. In the phylogenetic analysis, the studied specimen clusters with P. brasiliensis, corroborating the taxonomic determination and supporting a relationship between Satherium and Pteronura. The specimen is the first fossil record of the genus for Argentina, and the oldest corroborated record, with a 130-125 Ka tentative age.Fil: Prevosti, Francisco Juan. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; ArgentinaFil: Ferrero, Brenda Soledad. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; ArgentinaSociety of Vertebrate Paleontology2008-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/80190Prevosti, Francisco Juan; Ferrero, Brenda Soledad; A Pleistocene giant river otter from Argentina: Remarks on the fossil record and phylogenetic analysis; Society of Vertebrate Paleontology; Journal of Vertebrate Paleontology; 28; 4; 12-2008; 1171-11810272-4634CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1671/0272-4634-28.4.1171info:eu-repo/semantics/altIdentifier/doi/10.1671/0272-4634-28.4.1171info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:06:00Zoai:ri.conicet.gov.ar:11336/80190instacron: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 10:06:01.239CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A Pleistocene giant river otter from Argentina: Remarks on the fossil record and phylogenetic analysis
title A Pleistocene giant river otter from Argentina: Remarks on the fossil record and phylogenetic analysis
spellingShingle A Pleistocene giant river otter from Argentina: Remarks on the fossil record and phylogenetic analysis
Prevosti, Francisco Juan
Carnivora
Mustelidae
Fossil
Entre Ríos
title_short A Pleistocene giant river otter from Argentina: Remarks on the fossil record and phylogenetic analysis
title_full A Pleistocene giant river otter from Argentina: Remarks on the fossil record and phylogenetic analysis
title_fullStr A Pleistocene giant river otter from Argentina: Remarks on the fossil record and phylogenetic analysis
title_full_unstemmed A Pleistocene giant river otter from Argentina: Remarks on the fossil record and phylogenetic analysis
title_sort A Pleistocene giant river otter from Argentina: Remarks on the fossil record and phylogenetic analysis
dc.creator.none.fl_str_mv Prevosti, Francisco Juan
Ferrero, Brenda Soledad
author Prevosti, Francisco Juan
author_facet Prevosti, Francisco Juan
Ferrero, Brenda Soledad
author_role author
author2 Ferrero, Brenda Soledad
author2_role author
dc.subject.none.fl_str_mv Carnivora
Mustelidae
Fossil
Entre Ríos
topic Carnivora
Mustelidae
Fossil
Entre Ríos
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 fossil record of Neotropical Lutrinae is very incomplete, with a few specimens of Lontra and three records of Pteronura. The published records of Pteronura correspond to remains of Pteronura sp. from Lujanian beds in Entre Ríos province (Argentina) and P. brasiliensis found in the "Late Pleistocene" of Brazil, but they lack stratigraphic context and their age could range from at least 380-0.9 Ka. P. brasiliensis, the giant river otter, inhabits rivers and lakes of northern central South America, and has been related to the North American fossil otter Satherium. In this work we describe and compare a very complete specimen of Pteronura found in Entre Rios province using classical morphological descriptive and multivariate analyses, discuss the importance of this specimen for the fossil record of the taxon, and perform a preliminary phylogenetic analysis. The specimen agrees in morphometric and qualitative characters with the recent species P. brasiliensis, but is slightly larger and presents some minor differences in skull and dental morphology. These differences are interpreted as intraspecific variation, thus the fossil is interpreted as P. brasifiensis. In the phylogenetic analysis, the studied specimen clusters with P. brasiliensis, corroborating the taxonomic determination and supporting a relationship between Satherium and Pteronura. The specimen is the first fossil record of the genus for Argentina, and the oldest corroborated record, with a 130-125 Ka tentative age.
Fil: Prevosti, Francisco Juan. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
Fil: Ferrero, Brenda Soledad. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina
description The fossil record of Neotropical Lutrinae is very incomplete, with a few specimens of Lontra and three records of Pteronura. The published records of Pteronura correspond to remains of Pteronura sp. from Lujanian beds in Entre Ríos province (Argentina) and P. brasiliensis found in the "Late Pleistocene" of Brazil, but they lack stratigraphic context and their age could range from at least 380-0.9 Ka. P. brasiliensis, the giant river otter, inhabits rivers and lakes of northern central South America, and has been related to the North American fossil otter Satherium. In this work we describe and compare a very complete specimen of Pteronura found in Entre Rios province using classical morphological descriptive and multivariate analyses, discuss the importance of this specimen for the fossil record of the taxon, and perform a preliminary phylogenetic analysis. The specimen agrees in morphometric and qualitative characters with the recent species P. brasiliensis, but is slightly larger and presents some minor differences in skull and dental morphology. These differences are interpreted as intraspecific variation, thus the fossil is interpreted as P. brasifiensis. In the phylogenetic analysis, the studied specimen clusters with P. brasiliensis, corroborating the taxonomic determination and supporting a relationship between Satherium and Pteronura. The specimen is the first fossil record of the genus for Argentina, and the oldest corroborated record, with a 130-125 Ka tentative age.
publishDate 2008
dc.date.none.fl_str_mv 2008-12
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/11336/80190
Prevosti, Francisco Juan; Ferrero, Brenda Soledad; A Pleistocene giant river otter from Argentina: Remarks on the fossil record and phylogenetic analysis; Society of Vertebrate Paleontology; Journal of Vertebrate Paleontology; 28; 4; 12-2008; 1171-1181
0272-4634
CONICET Digital
CONICET
url http://hdl.handle.net/11336/80190
identifier_str_mv Prevosti, Francisco Juan; Ferrero, Brenda Soledad; A Pleistocene giant river otter from Argentina: Remarks on the fossil record and phylogenetic analysis; Society of Vertebrate Paleontology; Journal of Vertebrate Paleontology; 28; 4; 12-2008; 1171-1181
0272-4634
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.tandfonline.com/doi/abs/10.1671/0272-4634-28.4.1171
info:eu-repo/semantics/altIdentifier/doi/10.1671/0272-4634-28.4.1171
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Society of Vertebrate Paleontology
publisher.none.fl_str_mv Society of Vertebrate Paleontology
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_ 1842269938276892672
score 12.885934

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