Asociación de equinoideos en las calcarenitas messinienses de Alcalá de Guadaíra ( Sevilla, SO España)

• Autores: Ildefonso Bajo
• Localización: Geogaceta, ISSN 0213-683X, Nº. 45, 2008, págs. 55-58
• Idioma: español
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• Resumen

  • The echinoid assemblage from the Messinian calcarenitic deposits of Alcalá de Guadaíra (Sevilla, SW Spain) has been studied. Six species have been recognised; Schizechinus duciei and Plagiobrissus costae are rather common. This association and its taphonomic signature suggest a shallow marine depositional environment in the infralittoral, characterised by coarse detritic bottoms and variable hidrodynamic energy. This echinoid association corroborates the attribution of the studied sediments to the Messinian.