| Cotinguiba Formation | |
|---|---|
| Stratigraphic range: Late Cretaceous, ~ | |
| Type | Geological formation |
| Sub-units | Aracaju and Sapucari Members |
| Underlies | Calumbi Formation |
| Overlies | Riachuelo Formation |
| Thickness | from 200 metres (656 ft) up |
| Location | |
| Region | Sergipe-Alagoas Basin of Northeastern Brazil |
| Country |  Brazil |
| Extent | 200 kilometres (120 mi) |
The Cotinguiba Formation is a geologic formation of Late Cretaceous (Cenomanian to Coniacian)[1] 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.[2] It also possesses a rich macroinvertebrate fauna, of which stands out its bivalve mollucs, gastropods, ammonites, as well as equinoderms and crustaceans.[3]
- ^ Souza-Lima, W; Andrade, E. J (2002). "A bacia de Sergipe-Alagoas: evolução geológica, estratigrafia a e conteúdo fóssil". Phoenix, Edição Especial. 1 (1): 22–23.
- ^ Bengtson, Peter (1983). "The Cenomanian–Coniacian of the Sergipe Basin, Brazil". Fossil and Strata. 12: 1–78 – via ResearchGate.
- ^ Franco Neto, Emmanuel (2018). "Paleontologia e Paleoecologia dos moluscos biválvios da localidade Pedro Gonçalves, Formação Cotinguiba, Bacia de Sergipe" (PDF). Universidade Federal de Sergipe Centro de Ciências Exatas e Tecnologia Departamento de Geologia: 17.