The San Gregorio Formation is an Asselian geologic formation in Uruguay.[1]
| San Gregorio Formation | |
|---|---|
| Stratigraphic range: Asselian ~ | |
| Type | Geological formation |
| Unit of | Itararé Group |
| Underlies | Cerro Pelado Formation |
| Location | |
| Country |  Uruguay |
| Type section | |
| Named for | San Gregorio, Uruguay |
  San Gregorio Formation, Uruguay | |
Fossil content
The following fossils have been reported from the formation: