Phylogenetic affinities of the late Miocene echimyid †Pampamys and the age of Thrichomys (Rodentia, Hystricognathi)

Autores
Olivares, Adriana Itatí; Verzi, Diego Héctor; Vucetich, María Guiomar; Montalvo, Claudia
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Phylogenetic affinities of the late Miocene echimyid †Pampamys emmonsae Verzi, Vucetich, and Montalvo, 1995 (Huayquerian South American Land Mammal Age, central Argentina), were analyzed. In the most-parsimonious tree obtained, subfamilies of Echimyidae were nonmonophyletic (except for Dactylomyinae). Two major clades were recovered. One of them included the living fossorial Eumysopinae and the extinct †Theridomysops.The other clade grouped the terrestrial eumysopines Thrichomys (punaré) and Proechimys-Trinomys (spiny rats), and the arboreal eumysopines Mesomys (spiny tree-rats) + Echimyinae - Dactylomyinae. †Pampamys was the sister genus of Thrichomys, suggesting the Huayquerian South American Land Mammal Age (>6.0 million years ago [mya] by biochronology) as a minimum age for the origin of the living genus. Both major echimyid clades recognized here are represented by simplified-molared species in the Huayquerian South American Land Mammal Age. This would be related to the expansion of open environments during the late Miocene, and the geographical bias of the fossiliferous Huayquerian deposits exposed mostly in southern South America.
Facultad de Ciencias Naturales y Museo
Materia
Ciencias Naturales
caviomorph
Echimyidae
late Miocene
phylogeny
South America
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/84035
Acceder
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network_name_str SEDICI (UNLP)
spelling Phylogenetic affinities of the late Miocene echimyid †Pampamys and the age of Thrichomys (Rodentia, Hystricognathi)Olivares, Adriana ItatíVerzi, Diego HéctorVucetich, María GuiomarMontalvo, ClaudiaCiencias NaturalescaviomorphEchimyidaelate MiocenephylogenySouth AmericaPhylogenetic affinities of the late Miocene echimyid †<i>Pampamys emmonsae</i> Verzi, Vucetich, and Montalvo, 1995 (Huayquerian South American Land Mammal Age, central Argentina), were analyzed. In the most-parsimonious tree obtained, subfamilies of Echimyidae were nonmonophyletic (except for Dactylomyinae). Two major clades were recovered. One of them included the living fossorial Eumysopinae and the extinct †<i>Theridomysops</i>.The other clade grouped the terrestrial eumysopines <i>Thrichomys</i> (punaré) and <i>Proechimys-Trinomys</i> (spiny rats), and the arboreal eumysopines <i>Mesomys</i> (spiny tree-rats) + Echimyinae - Dactylomyinae. †<i>Pampamys</i> was the sister genus of <i>Thrichomys</i>, suggesting the Huayquerian South American Land Mammal Age (>6.0 million years ago [mya] by biochronology) as a minimum age for the origin of the living genus. Both major echimyid clades recognized here are represented by simplified-molared species in the Huayquerian South American Land Mammal Age. This would be related to the expansion of open environments during the late Miocene, and the geographical bias of the fossiliferous Huayquerian deposits exposed mostly in southern South America.Facultad de Ciencias Naturales y Museo2012info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf76-86http://sedici.unlp.edu.ar/handle/10915/84035enginfo:eu-repo/semantics/altIdentifier/issn/0022-2372info:eu-repo/semantics/altIdentifier/doi/10.1644/11-MAMM-A-176.1info: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:UNLP2025-09-03T10:48:24Zoai:sedici.unlp.edu.ar:10915/84035Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:48:24.36SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Phylogenetic affinities of the late Miocene echimyid †Pampamys and the age of Thrichomys (Rodentia, Hystricognathi)
title Phylogenetic affinities of the late Miocene echimyid †Pampamys and the age of Thrichomys (Rodentia, Hystricognathi)
spellingShingle Phylogenetic affinities of the late Miocene echimyid †Pampamys and the age of Thrichomys (Rodentia, Hystricognathi)
Olivares, Adriana Itatí
Ciencias Naturales
caviomorph
Echimyidae
late Miocene
phylogeny
South America
title_short Phylogenetic affinities of the late Miocene echimyid †Pampamys and the age of Thrichomys (Rodentia, Hystricognathi)
title_full Phylogenetic affinities of the late Miocene echimyid †Pampamys and the age of Thrichomys (Rodentia, Hystricognathi)
title_fullStr Phylogenetic affinities of the late Miocene echimyid †Pampamys and the age of Thrichomys (Rodentia, Hystricognathi)
title_full_unstemmed Phylogenetic affinities of the late Miocene echimyid †Pampamys and the age of Thrichomys (Rodentia, Hystricognathi)
title_sort Phylogenetic affinities of the late Miocene echimyid †Pampamys and the age of Thrichomys (Rodentia, Hystricognathi)
dc.creator.none.fl_str_mv Olivares, Adriana Itatí
Verzi, Diego Héctor
Vucetich, María Guiomar
Montalvo, Claudia
author Olivares, Adriana Itatí
author_facet Olivares, Adriana Itatí
Verzi, Diego Héctor
Vucetich, María Guiomar
Montalvo, Claudia
author_role author
author2 Verzi, Diego Héctor
Vucetich, María Guiomar
Montalvo, Claudia
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias Naturales
caviomorph
Echimyidae
late Miocene
phylogeny
South America
topic Ciencias Naturales
caviomorph
Echimyidae
late Miocene
phylogeny
South America
dc.description.none.fl_txt_mv Phylogenetic affinities of the late Miocene echimyid †<i>Pampamys emmonsae</i> Verzi, Vucetich, and Montalvo, 1995 (Huayquerian South American Land Mammal Age, central Argentina), were analyzed. In the most-parsimonious tree obtained, subfamilies of Echimyidae were nonmonophyletic (except for Dactylomyinae). Two major clades were recovered. One of them included the living fossorial Eumysopinae and the extinct †<i>Theridomysops</i>.The other clade grouped the terrestrial eumysopines <i>Thrichomys</i> (punaré) and <i>Proechimys-Trinomys</i> (spiny rats), and the arboreal eumysopines <i>Mesomys</i> (spiny tree-rats) + Echimyinae - Dactylomyinae. †<i>Pampamys</i> was the sister genus of <i>Thrichomys</i>, suggesting the Huayquerian South American Land Mammal Age (>6.0 million years ago [mya] by biochronology) as a minimum age for the origin of the living genus. Both major echimyid clades recognized here are represented by simplified-molared species in the Huayquerian South American Land Mammal Age. This would be related to the expansion of open environments during the late Miocene, and the geographical bias of the fossiliferous Huayquerian deposits exposed mostly in southern South America.
Facultad de Ciencias Naturales y Museo
description Phylogenetic affinities of the late Miocene echimyid †<i>Pampamys emmonsae</i> Verzi, Vucetich, and Montalvo, 1995 (Huayquerian South American Land Mammal Age, central Argentina), were analyzed. In the most-parsimonious tree obtained, subfamilies of Echimyidae were nonmonophyletic (except for Dactylomyinae). Two major clades were recovered. One of them included the living fossorial Eumysopinae and the extinct †<i>Theridomysops</i>.The other clade grouped the terrestrial eumysopines <i>Thrichomys</i> (punaré) and <i>Proechimys-Trinomys</i> (spiny rats), and the arboreal eumysopines <i>Mesomys</i> (spiny tree-rats) + Echimyinae - Dactylomyinae. †<i>Pampamys</i> was the sister genus of <i>Thrichomys</i>, suggesting the Huayquerian South American Land Mammal Age (>6.0 million years ago [mya] by biochronology) as a minimum age for the origin of the living genus. Both major echimyid clades recognized here are represented by simplified-molared species in the Huayquerian South American Land Mammal Age. This would be related to the expansion of open environments during the late Miocene, and the geographical bias of the fossiliferous Huayquerian deposits exposed mostly in southern South America.
publishDate 2012
dc.date.none.fl_str_mv 2012
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/10915/84035
url http://sedici.unlp.edu.ar/handle/10915/84035
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0022-2372
info:eu-repo/semantics/altIdentifier/doi/10.1644/11-MAMM-A-176.1
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
76-86
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
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