Cearadactylus is a medium-sized pterosaur species who lived in the early Cretaceous period and its diet mainly consisted of fish. It lived in what is now Brazil. The fossil comes from the Romualdo Member of the Santana Formation (110 million years old), and includes of a skull, 57 inches long, with lower jaws. First, the fossil was in Borgomanero's collection but is now at Brazil's Museu Nacional where the collection is included. In 1993 Fabio Marco Dalla Vecchia named a second species, Cearadactylus ligabuei. The specific name honours Giancarlo Ligabue, the director of the Centro Sudi Ricerche Ligabue in Venice. It is based on holotype CCSRL 12692/12713, again a heavily damaged crestless skull, 403 millimetres long. The skull consists of two pieces, the front and the back part, glued together by fossil traders; it is uncertain whether they belong to the same individual or indeed to the same species. Dalla Vecchia was himself not convinced the new species in fact belonged to Cearadactylus, but the skull was not sufficiently unique to base its own genus on yet still too different from known species to be assigned to them, so he created a new species for the genus the fossil most resembled. Later authors have consistently denied the identity referring to the taxon as Cearadactylus ligabuei.