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

Autores
Montalvo, Claudia; Fernández, Fernando Julián; Bargo, María Susana; Tomassini, Rodrigo L.; Mehl, Adriana Ester
Año de publicación
2017
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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 Lestodelphys halli 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.
Facultad de Ciencias Naturales y Museo
Materia
Paleontología
Tafonomía
Mamíferos
Estratigrafía
Holoceno
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/74911
Acceder
id SEDICI_c7bac6d640a25efcdd87a63253ea314c
oai_identifier_str oai:sedici.unlp.edu.ar:10915/74911
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling First record of a Late Holocene fauna associated with an ephemeral fluvial sequence in La Pampa Province, ArgentinaMontalvo, ClaudiaFernández, Fernando JuliánBargo, María SusanaTomassini, Rodrigo L.Mehl, Adriana EsterPaleontologíaTafonomíaMamíferosEstratigrafíaHolocenoThe 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.Facultad de Ciencias Naturales y Museo2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/74911spainfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0895981117300469info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2017.03.007info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:04:56Zoai:sedici.unlp.edu.ar:10915/74911Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:04:56.266SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv First record of a Late Holocene fauna associated with an ephemeral fluvial sequence in La Pampa Province, Argentina
title First record of a Late Holocene fauna associated with an ephemeral fluvial sequence in La Pampa Province, Argentina
spellingShingle First record of a Late Holocene fauna associated with an ephemeral fluvial sequence in La Pampa Province, Argentina
Montalvo, Claudia
Paleontología
Tafonomía
Mamíferos
Estratigrafía
Holoceno
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
dc.creator.none.fl_str_mv Montalvo, Claudia
Fernández, Fernando Julián
Bargo, María Susana
Tomassini, Rodrigo L.
Mehl, Adriana Ester
author Montalvo, Claudia
author_facet Montalvo, Claudia
Fernández, Fernando Julián
Bargo, María Susana
Tomassini, Rodrigo L.
Mehl, Adriana Ester
author_role author
author2 Fernández, Fernando Julián
Bargo, María Susana
Tomassini, Rodrigo L.
Mehl, Adriana Ester
author2_role author
author
author
author
dc.subject.none.fl_str_mv Paleontología
Tafonomía
Mamíferos
Estratigrafía
Holoceno
topic Paleontología
Tafonomía
Mamíferos
Estratigrafía
Holoceno
dc.description.none.fl_txt_mv 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.
Facultad de Ciencias Naturales y Museo
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.
publishDate 2017
dc.date.none.fl_str_mv 2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/74911
url http://sedici.unlp.edu.ar/handle/10915/74911
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0895981117300469
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2017.03.007
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
_version_ 1846064103329628160
score 13.221938

Publicaciones similares