[2] It also possesses a rich macroinvertebrate fauna, of which stands out its bivalve mollucs, gastropods, ammonites, as well as equinoderms and crustaceans.

It is mainly composed by limestone–marlstone couplets, with sandstones, coquinas and limestone breccias being included in some places.

These sediments were largely produced by algae and bioeroders on a shallow-water ramp.

[3] Various works have discussed the paleontology of the Sergipe-Alagoas Basin, where the Cotinguiba Formation is found.

[3] The first biochronostratigraphic study based on ammonites was done by G. Beurlen in 1970, followed by others like Reyment and Bengtson.