Adamantina Formation

Adamantina Formation
Stratigraphic range: Late Coniacian-Early Maastrichtian
87.8–68 Ma
TypeGeological formation
Unit ofBauru Group
UnderliesUberaba Formation
OverliesSanto Anastacio, Caiuá & Araçatuba Formations
Lithology
PrimarySandstone, calcrete
OtherMudstone, siltstone, conglomerate, coal
Location
Coordinates21°36′S 50°06′W / 21.6°S 50.1°W / -21.6; -50.1
Approximate paleocoordinates25°48′S 33°06′W / 25.8°S 33.1°W / -25.8; -33.1
Region São Paulo
Country Brazil
ExtentBauru Basin,
Paraná Basin
Type section
Named forAdamantina
Adamantina Formation is located in Brazil
Adamantina Formation
Adamantina Formation (Brazil)

The Adamantina Formation is a geological formation in the Bauru Basin of western São Paulo state, in southeastern Brazil.

Its strata date back to the Late Cretaceous epoch of the Cretaceous Period, during the Mesozoic Era. The formation is part of the Bauru Group in the northeastern Paraná Basin.