Palynological studies carried out in saliferous sequence of the Sergipe-Alagoas Basin in northeastern Brazil, confirm that the evaporites have been deposited in two distinct sedimentary cycles. The first one, Paripueira Evaporites, was deposited during the Early and Middle Alagoas (local stage) and, the second one, the Ibura Evaporites, during the Late Alagoas. These cycles were previously recognized by means of lithological and stratigraphical studies. On the african Atlantic margin, evaporites contemporaneous with the Paripueira Evaporites have not yet been detected. African evaporites dated as Late Aptian, probably correspond in age to the Ibura Evaporites in Sergipe-Alagoas.Resumo indisponível.