Chaetophractus vellerosus (Mammalia: Dasypodidae) in the Ensenadan (Early - Middle Pleistocene) of the southeastern Pampean region (Argentina) : Paleozoogeographical and paleoclimatic aspects

The xenarthran fauna recognized for the Ensenadan age is particularly abundant; Dasypodidae comprise approximately 20 % ofthis fauna. Chaetophractus vellerosus is recorded in the Pampean region from the Bonaerian-Lujanian (Middle Pleistocene - Late Pleistocene/Early Holocene) to the present, with a...

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Autores principales: Tonni, Eduardo Pedro, Carlini, Alfredo Armando, Soibelzon, Esteban, Soibelzon, Leopoldo Héctor
Formato: Articulo
Lenguaje:Inglés
Publicado: 2006
Materias:
Paleontología
Ciencias Naturales
Armadillos
Mamíferos
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/5365
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-5365
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Paleontología
Ciencias Naturales
Armadillos
Mamíferos
spellingShingle Paleontología
Ciencias Naturales
Armadillos
Mamíferos
Tonni, Eduardo Pedro
Carlini, Alfredo Armando
Soibelzon, Esteban
Soibelzon, Leopoldo Héctor
Chaetophractus vellerosus (Mammalia: Dasypodidae) in the Ensenadan (Early - Middle Pleistocene) of the southeastern Pampean region (Argentina) : Paleozoogeographical and paleoclimatic aspects
topic_facet Paleontología
Ciencias Naturales
Armadillos
Mamíferos
description The xenarthran fauna recognized for the Ensenadan age is particularly abundant; Dasypodidae comprise approximately 20 % ofthis fauna. Chaetophractus vellerosus is recorded in the Pampean region from the Bonaerian-Lujanian (Middle Pleistocene - Late Pleistocene/Early Holocene) to the present, with a current disjunct distribution (a continuous main area comprising the Gran Chaco and central Argentina, and a secondary area in the coastal region of Buenos Aires Province) attributed to a wider paleodistribution. The material s presented here are from Ensenadan sediments outcropping at Punta Hennengo (General Alvarado County, Buenos Aires Province), that would have been deposited under arid to semiarid climate conditions. These allow extension of the temporal distribution of the species to the Ensenadan in the Pampean region, as well as representing new evidence to test hypotheses of distributional changes related to global climatic variations recognized foy the Quatemary. In this sense, the current disjunct distribution can be interpreted as the result of fundamentally humid recent conditions that resulted in a relict occurrence of the species in coastal areas.
format Articulo
Articulo
author Tonni, Eduardo Pedro
Carlini, Alfredo Armando
Soibelzon, Esteban
Soibelzon, Leopoldo Héctor
author_facet Tonni, Eduardo Pedro
Carlini, Alfredo Armando
Soibelzon, Esteban
Soibelzon, Leopoldo Héctor
author_sort Tonni, Eduardo Pedro
title Chaetophractus vellerosus (Mammalia: Dasypodidae) in the Ensenadan (Early - Middle Pleistocene) of the southeastern Pampean region (Argentina) : Paleozoogeographical and paleoclimatic aspects
title_short Chaetophractus vellerosus (Mammalia: Dasypodidae) in the Ensenadan (Early - Middle Pleistocene) of the southeastern Pampean region (Argentina) : Paleozoogeographical and paleoclimatic aspects
title_full Chaetophractus vellerosus (Mammalia: Dasypodidae) in the Ensenadan (Early - Middle Pleistocene) of the southeastern Pampean region (Argentina) : Paleozoogeographical and paleoclimatic aspects
title_fullStr Chaetophractus vellerosus (Mammalia: Dasypodidae) in the Ensenadan (Early - Middle Pleistocene) of the southeastern Pampean region (Argentina) : Paleozoogeographical and paleoclimatic aspects
title_full_unstemmed Chaetophractus vellerosus (Mammalia: Dasypodidae) in the Ensenadan (Early - Middle Pleistocene) of the southeastern Pampean region (Argentina) : Paleozoogeographical and paleoclimatic aspects
title_sort chaetophractus vellerosus (mammalia: dasypodidae) in the ensenadan (early - middle pleistocene) of the southeastern pampean region (argentina) : paleozoogeographical and paleoclimatic aspects
publishDate 2006
url http://sedici.unlp.edu.ar/handle/10915/5365
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