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dc.title Quaternary mollusc assemblages from the lower basin of Salado River, Buenos Aires Province: Their use as paleoenvironmental indicators en
dc.type Artículo es
dcterms.abstract Quaternary mollusc assemblages preserved in the Salado basin are described and analyzed in order to reconstruct past environments and evaluate spatial and temporal variations. Five localities were analyzed, in which 48,998 individuals of eight continental gastropod species were recovered:<em>Heleobia parchappii</em>,<em>Antillorbis nordestensis</em>,<em>Biomphalaria peregrina</em>,<em>Drepanotrema heloicum</em>,<em>Uncancylus concentricus</em>,<em>Pomacea canaliculata</em>,<em>Succinea meridionalis</em>and<em>Miradiscops brasiliensis</em>. As well, other species typical of marine-estuarine environments have been found, among which<em>Heleobia australis</em>is highlighted. Based on changes in the composition and abundance of the assemblages, different environments could be recognized. Quaternary mollusc assemblages have low taxonomic heterogeneity and spatial and temporal variations. Assemblages recovered from Late Pleistocene–Early Holocene sediments are characterized by low species richness and abundance, with a single species in numerous examples. In the Middle Holocene, the shells became more constant and more diverse. Late Holocene assemblages have high species richness, freshwater, terrestrial and amphibious habits, and show some differences among different localities. Several episodes of flooding have been identified through the record of fossiliferous horizons with high density of shells, mainly<em>Heleobia parchappii</em>. These events that affected the area of influence of the Salado River occurred at least during the Late Holocene. es
dcterms.extent 12 p. es
dcterms.issued 2016-01
dcterms.language Inglés es
dcterms.license Attribution 4.0 International (BY 4.0) es
dcterms.subject Gastropod assemblages en
dcterms.subject Quaternary en
dcterms.subject Freshwater en
dcterms.subject Salado River en
dcterms.subject Paleoenvironments en
cic.version info:eu-repo/semantics/submittedVersion es Pisano, Florencia es Fucks, Enrique es
cic.lugarDesarrollo Centro de Estudios Integrales de la Dinámica Exógena (CEIDE) es
dcterms.subject.materia Geología es
dcterms.identifier.url Recurso Completo es
dcterms.identifier.other es
dcterms.isPartOf.issue vol. 391 es
dcterms.isPartOf.series Quaternary International es
cic.isPeerReviewed true es
cic.isFulltext true es


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