Upload resources

Upload your works to SEDICI to increase its visibility and improve its impact

 

Show simple item record

dc.date.accessioned 2019-11-08T16:26:24Z
dc.date.available 2019-11-08T16:26:24Z
dc.date.issued 2014
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/85242
dc.description.abstract In this study the molluscan fauna recovered from six archaeological sites of the Interserrana Bonaerense area is analyzed. Three geographical sectors were studied in this area: I) Middle river basin of Quequén Grande river; II) Southwest of the Interserrana area, and III) Upper river basin of the Tapalqué stream. The systematic review of the continental mollusks recovered was complemented with quantitative, stratigraphical and chronological data for each site since the early Holocene until the present. Additionally, ecological requirements and modern distribution patterns of the taxa recorded were considered in order to search for eventual palaeoenvironmental variations in space and time. A total of 15 taxa (14 Gastropoda and one Bivalvia) were identified in the Luján Formation deposits from southeastern Buenos Aires Province. The first Holocene records for “Aplexa” minor (d’Orbigny), Drepanotrema kermatoides (d’Orbigny), Antillorbis nordestensis (Lucena), Omalonyx unguis d’Orbigny and Pisidium sp. are reported in the Bonaerese Interserrana area. Overall, the mollusks suggest palustrine habitats at the beginning of the early Holocene. During the middle Holocene, they suggest higher humidity (increase of the precipitation pattern) ca. 4.9 kyrs BP and ca. 4.7 kyrs BP. At the beginning of the late Holocene they indicate a general arid trend interrupted by brief humid episodes registered ca. 2.5 kyrs BP and ca. 2.2 kyrs BP. The integration and correlation of molluscan records in spatial and temporal scales allowed recognizing geographical displacements (i.e. Retidiscus reticulatus Fonseca & Thomé) which represent biotic responses to Holocene climate variations as well as local environmental differences for stratigraphical sequences of similar chronologies. en
dc.format.extent 225-248 es
dc.language es es
dc.subject Contexts of depositation es
dc.subject Continental mollusks es
dc.subject Interserrana Bonaerense area es
dc.subject Late Quaternary es
dc.subject Luján Formation es
dc.subject Paleoenvironments es
dc.title Holocene continental molluscan fauna (Pampean Region, Argentina) en
dc.title.alternative Malacofauna continental holocena (Región Pampeana, Argentina)
dc.type Articulo es
sedici.identifier.other doi:10.4072/rbp.2014.2.09 es
sedici.identifier.other eid:2-s2.0-84907144815 es
sedici.identifier.issn 1519-7530 es
sedici.creator.person Steffan, Pamela G. es
sedici.creator.person Aguirre, Marina Laura es
sedici.creator.person Miquel, Sergio E. es
sedici.subject.materias Ciencias Naturales es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Naturales y Museo es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Revista Brasileira de Paleontologia es
sedici.relation.journalVolumeAndIssue vol. 17, no. 2 es


Download Files

This item appears in the following Collection(s)

Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Except where otherwise noted, this item's license is described as Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)