Itapecuru Formation
| Itapecuru Formation | |
|---|---|
| Stratigraphic range: Aptian-Cenomanian ~ | |
| Type | Geological formation |
| Underlies | Alluvium and Corda Formation |
| Overlies | Codó, Grajaú and Piauí Formations |
| Thickness | up to 2,000 m (6,600 ft) in São Luís Basin 700 m (2,300 ft) in Parnaíba Basin |
| Lithology | |
| Primary | Mudstone, sandstone |
| Other | Breccia, diamictite |
| Location | |
| Coordinates | 3°23′30″S 44°21′30″W / 3.39167°S 44.35833°W |
| Approximate paleocoordinates | 8°36′S 15°54′W / 8.6°S 15.9°W |
| Region | Itapecuru Mirim Maranhão |
| Country | Brazil |
| Extent | São Luís and Parnaíba Basins |
| Type section | |
| Named for | Itapecuru Mirim |
The Itapecuru Formation is a geological formation in Itapecuru Mirim, Maranhão, Brazil.
It was formed during the Aptian to Albian stages of the Early Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.