Guichón Formation
| Guichón Formation | |
|---|---|
| Stratigraphic range: Aptian-Santonian ~ | |
| Type | Geological formation |
| Unit of | Paysandú Group |
| Underlies | Mercedes Formation |
| Overlies | Arapey Formation |
| Thickness | Up to >100 m (330 ft) (in wells) |
| Lithology | |
| Primary | Sandstone |
| Other | Conglomerate |
| Location | |
| Coordinates | 32°00′S 57°42′W / 32.0°S 57.7°W |
| Approximate paleocoordinates | 38°24′S 30°00′W / 38.4°S 30.0°W |
| Region | Paysandú Department |
| Country | Uruguay |
| Extent | Norte Basin |
| Type section | |
| Named for | Guichón |
The Guichón Formation is a Late Cretaceous geologic formation of the Paysandú Group in Uruguay. Dinosaur remains are among the fossils that have been recovered from the formation.