González-Regalado Montero, María LuzRuiz Muñoz, FranciscoAbad de los Santos, ManuelPendón Martín, José GabrielTosquella Angrill, Josep2014-09-032014-09-032005http://hdl.handle.net/10272/8738This paper analyzes the benthic foraminiferal assemblages present in two Upper Tortonian sections belonging to the «Arcillas de Gibraleón» Formation (Guadalquivir Basin) containing a characteristic glauconitic level. The basal samples of this horizon show both shallow-water and epibathyal taxa, a mixture also found in ostracods that may characterize the transition toward deeper conditions. In the upper samples, deepneritic and epibathyal species are dominant, indicating a moderate-deep environment (150-300 m) in which was deposited most of the glauconitic horizonspaAtribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/Benthic foraminiferaGlauconiteGuadalquivir Basinjournal articleopen access