A new generalized paucituberculatan marsupial from the oligocene of Bolivia and the origin of 'shrew-like' opossums

Insights into the origin of 'shrew-like' oposssums of South America are gained thanks to a new fossil from the Oligocene Salla Beds in Bolivia. The specimen described here consists of a partial rostrum, palate and postcanine teeth, and shows several generalized features (cranial and dental...

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Detalles Bibliográficos
Autores principales: Goin, Francisco Javier, Sánchez-Villagra, Marcelo R., Abello, Alejandra, Kay, Richaed F.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2007
Materias:
Paleontología
Abderitidae
Anatomy
Caenolestidae
Marsupialia
Metatheria
Palaeothentidae
SouthAmerica
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83212
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83212
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Paleontología
Abderitidae
Anatomy
Caenolestidae
Marsupialia
Metatheria
Palaeothentidae
SouthAmerica
spellingShingle Paleontología
Abderitidae
Anatomy
Caenolestidae
Marsupialia
Metatheria
Palaeothentidae
SouthAmerica
Goin, Francisco Javier
Sánchez-Villagra, Marcelo R.
Abello, Alejandra
Kay, Richaed F.
A new generalized paucituberculatan marsupial from the oligocene of Bolivia and the origin of 'shrew-like' opossums
topic_facet Paleontología
Abderitidae
Anatomy
Caenolestidae
Marsupialia
Metatheria
Palaeothentidae
SouthAmerica
description Insights into the origin of 'shrew-like' oposssums of South America are gained thanks to a new fossil from the Oligocene Salla Beds in Bolivia. The specimen described here consists of a partial rostrum, palate and postcanine teeth, and shows several generalized features (cranial and dental) in the context of the Paucituberculata. On this basis we recognize Evolestes hadrommatos gen. et sp. nov. In order to evaluate the affinities of the new taxon, we performed a phylogenetic analysis including representatives of the Caenolestidae, Pichipilus and allies (not regarded here as caenolestids), Palaeothentidae, and Abderitidae, with three outgroups. Evolestes is the basalmost 'caenolestoid', and provides clues to the morphological changes involved in the origin of caenolestids.
format Articulo
Articulo
author Goin, Francisco Javier
Sánchez-Villagra, Marcelo R.
Abello, Alejandra
Kay, Richaed F.
author_facet Goin, Francisco Javier
Sánchez-Villagra, Marcelo R.
Abello, Alejandra
Kay, Richaed F.
author_sort Goin, Francisco Javier
title A new generalized paucituberculatan marsupial from the oligocene of Bolivia and the origin of 'shrew-like' opossums
title_short A new generalized paucituberculatan marsupial from the oligocene of Bolivia and the origin of 'shrew-like' opossums
title_full A new generalized paucituberculatan marsupial from the oligocene of Bolivia and the origin of 'shrew-like' opossums
title_fullStr A new generalized paucituberculatan marsupial from the oligocene of Bolivia and the origin of 'shrew-like' opossums
title_full_unstemmed A new generalized paucituberculatan marsupial from the oligocene of Bolivia and the origin of 'shrew-like' opossums
title_sort new generalized paucituberculatan marsupial from the oligocene of bolivia and the origin of 'shrew-like' opossums
publishDate 2007
url http://sedici.unlp.edu.ar/handle/10915/83212
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