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

cic.isFulltexttruees
cic.isPeerReviewedtruees
cic.lugarDesarrolloUniversidad Nacional de La Plataes
cic.versioninfo:eu-repo/semantics/publishedVersiones
dc.date.accessioned2019-05-10T11:52:02Z
dc.date.available2019-05-10T11:52:02Z
dc.identifier.urihttps://digital.cic.gba.gob.ar/handle/11746/9963
dc.titleFirst record of a Late Holocene fauna associated with an ephemeral fluvial sequence in La Pampa Province, Argentinaen
dc.typeArtículoes
dcterms.abstractThe 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
dcterms.creator.authorMontalvo, Claudia I.es
dcterms.creator.authorFernández, Fernando J.es
dcterms.creator.authorBargo, María Susanaes
dcterms.creator.authorTomassini, Rodrigo L.es
dcterms.creator.authorMehl, Adrianaes
dcterms.extent13 p.es
dcterms.identifier.otherDOI:10.1016/j.jsames.2017.03.007es
dcterms.identifier.urlRecurso Completoes
dcterms.isPartOf.issuevol. 76es
dcterms.isPartOf.seriesJournal of South American Earth Scienceses
dcterms.issued2017-03-21
dcterms.languageIngléses
dcterms.licenseAttribution-NonCommercial-NoDerivatives 4.0 Internacionales
dcterms.spatialRegión pampeanaes
dcterms.subjectTafonomíaes
dcterms.subjectEstratigrafíaes
dcterms.subjectMamíferoses
dcterms.subjectHolocenoes
dcterms.subject.materiaCiencias Naturales y Exactases

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