Systematic revision of the vizcachas (Rodentia, Caviomorpha, Chinchillidae) from the Chapadmalal Formation, late Pliocene of Buenos Aires Province, Argentina

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Lagostomine rodents (Caviomorpha, Chinchillidae) are very abundant in late Cenozoic vertebrate associations of the Pampean area but the study of their systematics has been mostly limited to a handful of works from the late 19th Century and early 20th Century. Although seven species of <i>Lagos...

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Autores principales: Rasia, Luciano Luis, Candela, Adriana Magdalena
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Naturales
Late Pliocene
Rodentia
Caviomorpha
Chinchillidae
Systematics
Buenos Aires
Argentina
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/106490
https://bioone.org/journals/ameghiniana/volume-54/issue-1/AMGH.01.09.2016.3012/Systematic-Revision-of-the-Vizcachas-Rodentia-Caviomorpha-Chinchillidae-from-the/10.5710/AMGH.01.09.2016.3012.short
https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/3012
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-106490
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Late Pliocene
Rodentia
Caviomorpha
Chinchillidae
Systematics
Buenos Aires
Argentina
spellingShingle Ciencias Naturales
Late Pliocene
Rodentia
Caviomorpha
Chinchillidae
Systematics
Buenos Aires
Argentina
Rasia, Luciano Luis
Candela, Adriana Magdalena
Systematic revision of the vizcachas (Rodentia, Caviomorpha, Chinchillidae) from the Chapadmalal Formation, late Pliocene of Buenos Aires Province, Argentina
topic_facet Ciencias Naturales
Late Pliocene
Rodentia
Caviomorpha
Chinchillidae
Systematics
Buenos Aires
Argentina
description Lagostomine rodents (Caviomorpha, Chinchillidae) are very abundant in late Cenozoic vertebrate associations of the Pampean area but the study of their systematics has been mostly limited to a handful of works from the late 19th Century and early 20th Century. Although seven species of <i>Lagostomus</i> were described for the Chapadmalal Formation (late Pliocene; Buenos Aires Province, Argentina), the holotypes of these species do not present precise stratigraphic provenance and have not been studied since their original description. This study of lagostomines from the Chapadmalal Formation with precise stratigraphic provenance gives way to the recognition of at least three species: <i>Lagostomus incisus</i>, <i>L. compressidens</i> and <i>L. euplasius</i>. The comparative study of the holotypes of the previously recognized species in this unit indicates that ‘<i>Viscaccia indefinita</i>’ is a junior synonym of <i>L. compressidens</i> while ‘<i>V. loberiaense</i>’, ‘<i>V. definita</i>’ and ‘<i>V. chapalmalense</i>’ are junior synonyms of <i>L. euplasius</i>. The validity of ‘<i>Viscaccia arcuata</i>’ and its inclusion in the Chapadmalalan fauna has to be re-evaluated. This work clarifies part of the systematics of the genus <i>Lagostomus</i>, thus contributing to the comprehension of the taxonomic diversity of chinchillids during their most recent evolutionary history.
format Articulo
Articulo
author Rasia, Luciano Luis
Candela, Adriana Magdalena
author_facet Rasia, Luciano Luis
Candela, Adriana Magdalena
author_sort Rasia, Luciano Luis
title Systematic revision of the vizcachas (Rodentia, Caviomorpha, Chinchillidae) from the Chapadmalal Formation, late Pliocene of Buenos Aires Province, Argentina
title_short Systematic revision of the vizcachas (Rodentia, Caviomorpha, Chinchillidae) from the Chapadmalal Formation, late Pliocene of Buenos Aires Province, Argentina
title_full Systematic revision of the vizcachas (Rodentia, Caviomorpha, Chinchillidae) from the Chapadmalal Formation, late Pliocene of Buenos Aires Province, Argentina
title_fullStr Systematic revision of the vizcachas (Rodentia, Caviomorpha, Chinchillidae) from the Chapadmalal Formation, late Pliocene of Buenos Aires Province, Argentina
title_full_unstemmed Systematic revision of the vizcachas (Rodentia, Caviomorpha, Chinchillidae) from the Chapadmalal Formation, late Pliocene of Buenos Aires Province, Argentina
title_sort systematic revision of the vizcachas (rodentia, caviomorpha, chinchillidae) from the chapadmalal formation, late pliocene of buenos aires province, argentina
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/106490
https://bioone.org/journals/ameghiniana/volume-54/issue-1/AMGH.01.09.2016.3012/Systematic-Revision-of-the-Vizcachas-Rodentia-Caviomorpha-Chinchillidae-from-the/10.5710/AMGH.01.09.2016.3012.short
https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/3012
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