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

cic.isFulltext true es
cic.isPeerReviewed true es
cic.lugarDesarrollo Universidad Nacional de La Plata es
cic.version info:eu-repo/semantics/publishedVersion es 2019-05-10T11:52:02Z 2019-05-10T11:52:02Z
dc.title First record of a Late Holocene fauna associated with an ephemeral fluvial sequence in La Pampa Province, Argentina en
dc.type Artículo es
dcterms.abstract 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. en Montalvo, Claudia I. es Fernández, Fernando J. es Bargo, María Susana es Tomassini, Rodrigo L. es Mehl, Adriana es
dcterms.extent 13 p. es
dcterms.identifier.other DOI:10.1016/j.jsames.2017.03.007 es
dcterms.identifier.url Recurso Completo es
dcterms.isPartOf.issue vol. 76 es
dcterms.isPartOf.series Journal of South American Earth Sciences es
dcterms.issued 2017-03-21
dcterms.language Inglés es
dcterms.license Attribution-NonCommercial-NoDerivatives 4.0 Internacional es
dcterms.spatial Región pampeana es
dcterms.subject Tafonomía es
dcterms.subject Estratigrafía es
dcterms.subject Mamíferos es
dcterms.subject Holoceno es
dcterms.subject.materia Ciencias Naturales y Exactas es
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