First record of a Late Holocene fauna associated with an ephemeral fluvial sequence in La Pampa Province, Argentina

The first Late Holocene mammal assemblage (mainly micromammals) of La Pampa Province was found in Quehue paleontological site, associated with an ephemeral fluvial sequence. Taphonomical features of the collected materials were evaluated in order to increase the knowledge of the ancient vertebrate com...

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Autores principales: Montalvo, Claudia, Fernández, Fernando Julián, Bargo, María Susana, Tomassini, Rodrigo L., Mehl, Adriana Ester
Formato: Articulo
Lenguaje:Español
Publicado: 2017
Materias:
Paleontología
Tafonomía
Mamíferos
Estratigrafía
Holoceno
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/74911
https://www.sciencedirect.com/science/article/pii/S0895981117300469
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-74911
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Paleontología
Tafonomía
Mamíferos
Estratigrafía
Holoceno
spellingShingle Paleontología
Tafonomía
Mamíferos
Estratigrafía
Holoceno
Montalvo, Claudia
Fernández, Fernando Julián
Bargo, María Susana
Tomassini, Rodrigo L.
Mehl, Adriana Ester
First record of a Late Holocene fauna associated with an ephemeral fluvial sequence in La Pampa Province, Argentina
topic_facet Paleontología
Tafonomía
Mamíferos
Estratigrafía
Holoceno
description The first Late Holocene mammal assemblage (mainly micromammals) of La Pampa Province was found in Quehue paleontological site, associated with an ephemeral fluvial sequence. Taphonomical features of the collected materials were evaluated in order to increase the knowledge of the ancient vertebrate communities of this area and to interpret the origin of the assemblages. Field data and taphonomic analysis of the specimens, suggested the recognition of three assemblages with different taphonomic histories: 1) large to medium sized mammals; 2) micromammals found inside burrows or associated with them; and 3) discrete accumulations of micromammals and other microvertebrates (amphibians, reptiles and birds). Additionally, the paleoenvironmental analysis based mainly on the record of small mammals reflected the predominance of semi-arid conditions associated with a mosaic of open shrub steppe, grasslands and xerophytic forests of Espinal, similar to the present one in the Quehué Valley area. However, the presence of <em>Lestodelphys</em> <em>halli</em> in the Quehué site during the Late Holocene (~1.2 ky BP), suggests a more heterogeneous environment and perhaps relative colder and drier than current times, which are featured by more mesic conditions and anthropic activities, mainly agriculture and livestock during the last centuries.
format Articulo
Articulo
author Montalvo, Claudia
Fernández, Fernando Julián
Bargo, María Susana
Tomassini, Rodrigo L.
Mehl, Adriana Ester
author_facet Montalvo, Claudia
Fernández, Fernando Julián
Bargo, María Susana
Tomassini, Rodrigo L.
Mehl, Adriana Ester
author_sort Montalvo, Claudia
title First record of a Late Holocene fauna associated with an ephemeral fluvial sequence in La Pampa Province, Argentina
title_short First record of a Late Holocene fauna associated with an ephemeral fluvial sequence in La Pampa Province, Argentina
title_full First record of a Late Holocene fauna associated with an ephemeral fluvial sequence in La Pampa Province, Argentina
title_fullStr First record of a Late Holocene fauna associated with an ephemeral fluvial sequence in La Pampa Province, Argentina
title_full_unstemmed First record of a Late Holocene fauna associated with an ephemeral fluvial sequence in La Pampa Province, Argentina
title_sort first record of a late holocene fauna associated with an ephemeral fluvial sequence in la pampa province, argentina
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/74911
https://www.sciencedirect.com/science/article/pii/S0895981117300469
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