Resumen de Datos preliminares sobre los ostrácodos de las arenas basales de la Formación "Niebla": (depresión del Guadalquivir, S.O. de España)

Francisco Ruiz Muñoz, María Luz González-Regalado Montero, Juan Ignacio Baceta Caballero, José Gabriel Pendón Martín, Josep Tosquella Angrill

• This work analyses the ostracofaune of the basal sands of the "Niebla“ Formation (Baceta and Pendón, 1 999). The associations permit to infer the beginning of a transgressive sequence, with a very shallow, vegetated, infralittoral environment in the lower part of the sandy body, and an externe, more energetic infralittoral environment near the top