Fifty-four pollen and spore species were identified in samples from a core drilled in the Icó Basin, central southern portion of Ceará State, Brazil. Among these species, the presence of Klukisporites cf. foveolatus (= Foveotriletes sp.), Exesipollenites tumulus, Inaperturopollenites turbatus and Inaperturopollenites simplex allows the assemblages to be placed in Palynological Zones P-250/P-260 of the Petrobrás zonation, which chronostratigraphically represent the middle part of the Alagoas Stage, of Aptian age. This assignment is reinforced by the general characteristics of the palynofloras, typical of this chronologic interval, which are also suggestive of a nonmarine depositional environment under hot and wet climatic conditions
