“…Such place is the richest one in fossils in the Potiguar Basin, including microfossils (foraminifers, microalgae, nannofossils, dinoflagellate, bryozoans, ostracodes, and pollen) and macrofossils (bivalves, gastropods, echinoids, conchostracans, and vertebrates). Sampaio & Schaller (1968) date this formation as Turonian, Coniacian and Santonian, Tibana and Terra (1981) consider that its age extends from the Turonian to the Maastrichtian; Souza (1982) indicates a Turonian-Campanian range; and finally, Wanderley (1987), based on calcareous nannofossil data, suggests a Turonian-Campanian age, which was reinforced by Viviers et al (2000) by means of ostracode biostratigraphic studies.…”