Itapecuru Formation
Geological formation in Brazil / From Wikipedia, the free encyclopedia
The Itapecuru Formation is a geological formation in Itapecuru Mirim, Maranhão, Brazil.
Quick Facts Type, Underlies ...
Itapecuru Formation | |
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Stratigraphic range: Aptian-Cenomanian ~120–95 Ma | |
Type | Geological formation |
Underlies | Alluvium & Corda Formation |
Overlies | Codó, Grajaú & 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 |
Approximate paleocoordinates | 8.6°S 15.9°W / -8.6; -15.9 |
Region | Itapecuru Mirim Maranhão |
Country | Brazil |
Extent | São Luís & Parnaíba Basins |
Type section | |
Named for | Itapecuru Mirim |
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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]