New rodents (Mammalia) from the late Oligocene of Cabeza Blanca (Chubut) and the first rodent radiation in Patagonia

Caviomorph rodents, the New World Hystricognathi, are one of the most characteristic groups of South American mammals. Although they have been in the continent at least since the middle Eocene, those of the Deseadan Land mammal Age (early–late Oligocene) are the best source to understanding their ea...

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Detalles Bibliográficos
Autores: Vucetich, María Guiomar, Dozo, María Teresa, Arnal, Michelle, Pérez, María Encarnación
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:Argentina
Institución:Universidad Nacional de La Plata
Repositorio:SEDICI (UNLP)
Idioma:inglés
OAI Identifier:oai:sedici.unlp.edu.ar:10915/127608
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/127608
Access Level:acceso abierto
Palabra clave:Paleontología
Caviomorpha
Taxonomy
South America
Deseadan SALMA
Cenozoic
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spelling New rodents (Mammalia) from the late Oligocene of Cabeza Blanca (Chubut) and the first rodent radiation in PatagoniaVucetich, María GuiomarDozo, María TeresaArnal, MichellePérez, María EncarnaciónPaleontologíaCaviomorphaTaxonomySouth AmericaDeseadan SALMACenozoicCaviomorph rodents, the New World Hystricognathi, are one of the most characteristic groups of South American mammals. Although they have been in the continent at least since the middle Eocene, those of the Deseadan Land mammal Age (early–late Oligocene) are the best source to understanding their early history due of their good record, large geographic distribution and good temporal calibration of many of the local faunas. Here, we describe the following new taxa from the classical locality of Cabeza Blanca: Octodontoidea Acaremyidae Galileomys baios n. sp., Octodontoidea incertae sedis Ethelomys loomisi n. gen., n. comb., Acarechimys leucotheae n. sp., Protacaremys? adilos n. sp., Chinchilloidea incertae sedis Loncolicu tretos n. gen., n. sp., Incamys menniorum n. sp., Caviomorpha incertae sedis Llitun notuca n. gen., n. sp., Leucokephalos zeffiae n. gen., n. sp. and Cephalomyidae Cephalomys ceciae n. sp. The DP4 of an ‘eocardiid’, Asteromys punctus? is described for the first time. These new taxa allow us to reinterpret the relationships of some of the previously known Deseadan species and genera. They show a great early diversification at least for extra Andean Patagonia, involving at least three of the main caviomorph lineages: octodontoids, chinchilloids and cavioids.Facultad de Ciencias Naturales y Museo2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/127608enginfo:eu-repo/semantics/altIdentifier/issn/0891-2963info:eu-repo/semantics/altIdentifier/issn/1029-2381info:eu-repo/semantics/altIdentifier/doi/10.1080/08912963.2014.883506info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2024-05-08T13:09:23Zoai:sedici.unlp.edu.ar:10915/127608Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292024-05-08 13:09:23.371SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv New rodents (Mammalia) from the late Oligocene of Cabeza Blanca (Chubut) and the first rodent radiation in Patagonia
title New rodents (Mammalia) from the late Oligocene of Cabeza Blanca (Chubut) and the first rodent radiation in Patagonia
spellingShingle New rodents (Mammalia) from the late Oligocene of Cabeza Blanca (Chubut) and the first rodent radiation in Patagonia
Vucetich, María Guiomar
Paleontología
Caviomorpha
Taxonomy
South America
Deseadan SALMA
Cenozoic
title_short New rodents (Mammalia) from the late Oligocene of Cabeza Blanca (Chubut) and the first rodent radiation in Patagonia
title_full New rodents (Mammalia) from the late Oligocene of Cabeza Blanca (Chubut) and the first rodent radiation in Patagonia
title_fullStr New rodents (Mammalia) from the late Oligocene of Cabeza Blanca (Chubut) and the first rodent radiation in Patagonia
title_full_unstemmed New rodents (Mammalia) from the late Oligocene of Cabeza Blanca (Chubut) and the first rodent radiation in Patagonia
title_sort New rodents (Mammalia) from the late Oligocene of Cabeza Blanca (Chubut) and the first rodent radiation in Patagonia
dc.creator.none.fl_str_mv Vucetich, María Guiomar
Dozo, María Teresa
Arnal, Michelle
Pérez, María Encarnación
author Vucetich, María Guiomar
author_facet Vucetich, María Guiomar
Dozo, María Teresa
Arnal, Michelle
Pérez, María Encarnación
author_role author
author2 Dozo, María Teresa
Arnal, Michelle
Pérez, María Encarnación
author2_role author
author
author
dc.subject.none.fl_str_mv Paleontología
Caviomorpha
Taxonomy
South America
Deseadan SALMA
Cenozoic
topic Paleontología
Caviomorpha
Taxonomy
South America
Deseadan SALMA
Cenozoic
description Caviomorph rodents, the New World Hystricognathi, are one of the most characteristic groups of South American mammals. Although they have been in the continent at least since the middle Eocene, those of the Deseadan Land mammal Age (early–late Oligocene) are the best source to understanding their early history due of their good record, large geographic distribution and good temporal calibration of many of the local faunas. Here, we describe the following new taxa from the classical locality of Cabeza Blanca: Octodontoidea Acaremyidae Galileomys baios n. sp., Octodontoidea incertae sedis Ethelomys loomisi n. gen., n. comb., Acarechimys leucotheae n. sp., Protacaremys? adilos n. sp., Chinchilloidea incertae sedis Loncolicu tretos n. gen., n. sp., Incamys menniorum n. sp., Caviomorpha incertae sedis Llitun notuca n. gen., n. sp., Leucokephalos zeffiae n. gen., n. sp. and Cephalomyidae Cephalomys ceciae n. sp. The DP4 of an ‘eocardiid’, Asteromys punctus? is described for the first time. These new taxa allow us to reinterpret the relationships of some of the previously known Deseadan species and genera. They show a great early diversification at least for extra Andean Patagonia, involving at least three of the main caviomorph lineages: octodontoids, chinchilloids and cavioids.
publishDate 2015
dc.date.none.fl_str_mv 2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/127608
url http://sedici.unlp.edu.ar/handle/10915/127608
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0891-2963
info:eu-repo/semantics/altIdentifier/issn/1029-2381
info:eu-repo/semantics/altIdentifier/doi/10.1080/08912963.2014.883506
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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