The stratigraphic section of the island Elobey Grande in the Republic of Equatorial Guinea is briefly described. All the samples analized present tipical characteristics of the post-rift of the Equatorial Atlantic continental pasive margin with the same source area and abundant contribution of volcanic materials. The materials were deposited in coastal areas in a distensive regime, as it can be infered from some precisely filled joints, although it should be situated in the interval between the Albian and the lower Senonian