Itapecuru Formation
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UnderliesAlluvium and Corda Formation
OverliesCodó, Grajaú and Piauí Formations
Thicknessup to 2,000 m (6,600 ft) in São Luís Basin
700 m (2,300 ft) in Parnaíba Basin
700 m (2,300 ft) in Parnaíba Basin
| 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 |
  Itapecuru Formation (Brazil) | |
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.[1] Dinosaur remains are among the fossils that have been recovered from the formation.[2]
