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Cotinguiba Formation
The Cotinguiba Formation is a geologic formation of Late Cretaceous (Cenomanian to Coniacian) age in the northeastern Brazil's Sergipe-Alagoas Basin. The Formation is composed of carbonates with clastic intercalations, moreover, the two members dividing it, the Sapucari and Aracaju members, are defined by the proportion of said carbonates. It also possesses a rich macroinvertebrate fauna, of which stands out its bivalve mollucs, gastropods, ammonites, as well as echinoderms and crustaceans.
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