Chaetophractus tarijensis (Xenarthra, Dasypodidae) : ¿Un endemismo del valle de Tarija (Bolivia)? Implicancias paleobiogeográficas

Chaetophractus tarijensis (Ameghino) is a dasypodid restricted to the Pleistocene of the Tarija Valley (Bolivia). In this contribution we study the type specimen of C. tarijensis and referred specimens to this species, and establish comparisons with extant Dasypodidae Euphractinae. The analysis of t...

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Detalles Bibliográficos
Autores principales: Rodriguez Bualó, Santiago, Soibelzon, Esteban, Scarano, Alejo Carlos, Zurita, Alfredo Eduardo
Formato: Articulo
Lenguaje:Español
Publicado: 2014
Materias:
Ciencias Naturales
Cingulata
Euphractinae
Pleistocene
Quaternary
South America
Taxonomy
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85200
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85200
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Ciencias Naturales
Cingulata
Euphractinae
Pleistocene
Quaternary
South America
Taxonomy
spellingShingle Ciencias Naturales
Cingulata
Euphractinae
Pleistocene
Quaternary
South America
Taxonomy
Rodriguez Bualó, Santiago
Soibelzon, Esteban
Scarano, Alejo Carlos
Zurita, Alfredo Eduardo
Chaetophractus tarijensis (Xenarthra, Dasypodidae) : ¿Un endemismo del valle de Tarija (Bolivia)? Implicancias paleobiogeográficas
topic_facet Ciencias Naturales
Cingulata
Euphractinae
Pleistocene
Quaternary
South America
Taxonomy
description Chaetophractus tarijensis (Ameghino) is a dasypodid restricted to the Pleistocene of the Tarija Valley (Bolivia). In this contribution we study the type specimen of C. tarijensis and referred specimens to this species, and establish comparisons with extant Dasypodidae Euphractinae. The analysis of the present study reveal that the characters used by Florentino Ameghino (e.g. the underdevelopment of the angular portion of the ramus of the mandible and the cylindrical shape of the last molariform) do not allow the differentiation with Chaetopractus (Desmarest). Also, a principal components analysis was performed with cranial measurements. All these evidence support the hypothesis that C. tarijensis is a synonym of C. villosus. From a paleobiogeographic point of view, these results are important because it indicates that C. tarijensis is not one of the few supposedly endemic species of the of the Tarija Valley.
format Articulo
Articulo
author Rodriguez Bualó, Santiago
Soibelzon, Esteban
Scarano, Alejo Carlos
Zurita, Alfredo Eduardo
author_facet Rodriguez Bualó, Santiago
Soibelzon, Esteban
Scarano, Alejo Carlos
Zurita, Alfredo Eduardo
author_sort Rodriguez Bualó, Santiago
title Chaetophractus tarijensis (Xenarthra, Dasypodidae) : ¿Un endemismo del valle de Tarija (Bolivia)? Implicancias paleobiogeográficas
title_short Chaetophractus tarijensis (Xenarthra, Dasypodidae) : ¿Un endemismo del valle de Tarija (Bolivia)? Implicancias paleobiogeográficas
title_full Chaetophractus tarijensis (Xenarthra, Dasypodidae) : ¿Un endemismo del valle de Tarija (Bolivia)? Implicancias paleobiogeográficas
title_fullStr Chaetophractus tarijensis (Xenarthra, Dasypodidae) : ¿Un endemismo del valle de Tarija (Bolivia)? Implicancias paleobiogeográficas
title_full_unstemmed Chaetophractus tarijensis (Xenarthra, Dasypodidae) : ¿Un endemismo del valle de Tarija (Bolivia)? Implicancias paleobiogeográficas
title_sort chaetophractus tarijensis (xenarthra, dasypodidae) : ¿un endemismo del valle de tarija (bolivia)? implicancias paleobiogeográficas
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/85200
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