| Asencio Formation | |
| Type: | Geological formation |
| Period: | Campanian-Maastrichtian |
| Age: | Campanian-Maastrichtian ~ |
| Prilithology: | Sandstone |
| Namedfor: | Cry of Asencio |
| Region: | Colonia, Río Negro, Soriano, Tacuarembó |
| Coordinates: | -33°N -57.2°W |
| Paleocoordinates: | -36.6°N -41.6°W |
| Subunits: | Del Palacio Member |
| Underlies: | Queguay & Fray Bentos Formations |
| Overlies: | Mercedes Formation |
| Extent: | Paraná Basin |
The Asencio Formation is a geological formation in the Paraná Basin of southwestern Uruguay whose strata date back to the Late Cretaceous (Campanian-Maastrichtian). Dinosaur remains are among the fossils that have been recovered from the formation.[1]