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Paleoecología de la malacofauna de bivalvos del Mioceno superior de Cacela (SE Portugal)

Bivalve palaeoecology from Upper Miocene of Cacela (SE Portugal)
Authors: Santos, A.; Mayoral Alfaro, Eduardo;

Paleoecología de la malacofauna de bivalvos del Mioceno superior de Cacela (SE Portugal)

Abstract

El interés por el yacimiento fósil de la Ribera de Cacela (SE Portugal) se remonta al siglo pasado y se centra principalmente en la gran riqueza y diversidad de la fauna malacológica, siendo de destacar el excelente estado de conservación que éstas presentan. Del estudio realizado, tomando como base la malacofauna de bivalvos, se han podido identificar un total de 85 especies y subespecies. El estudio tafonómico se realizó teniendo en cuenta la litología, la composición de los bivalvos, la bioerosión y la presencia de otros taxa, que pudieran aportar, eventualmente, datos importantes que completaran este apartado. El estudio de la paleocomunidad de bivalvos desde un punto de vista paleoambiental, para el área de estudio, sugiere un medio marino litoral de energía baja a moderada y una profundidad estimada entre 20 y 30 metros; una salinidad semejante a la actual dentro de un régimen térmico tropical a subtropical y temperatura del agua superior a las observadas actualmente para estas latitudes. Palabras clave: Bivalvia, Paleoecología, Tortoniense superior, Cacela, SE Portugal.

The interest for the Ribeira de Cacela fossil outcrop (SE Portugal) dating back to the mid-nineteenth century and was focused by the presence of a rich and diverse fauna, especially invertebrates, in an excellent state of preservation. In base on the study of bivalve malacofaune a total of 85 species and subspecies were identified. The paleoecologic analysis was done covering lithologic aspects, bivalve faune composition, bioerosion and presence of other taxa, which give relevant data to complete this subject. The local environmental conditions suggested by the bivalve assemblage indicate the presence of a coastal environmental, with low to moderate hydrodynamic conditions, depths around 20 to 30 meters, salinity conditions similar to the present ones and tropical to subtropical thermal regime, with higher water temperatures than those observed presently at these latitudes. Key words: Bivalvia, Paleoecology, Upper Tortonian, Cacela, SE Portugal.

Country
Spain
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Keywords

Tortoniense superior, Upper Tortonian, Paleoecología, Paleoecology, SE Portugal, Bivalvia, Cacela

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green