| Rancho Nuevo Formation | |
|---|---|
| Stratigraphic range: Paleogene | |
| Type | Formation |
| Unit of | Difunta Group |
| Overlies | Las Encinas Formation |
| Location | |
| Country |  Mexico |
The Rancho Nuevo Formation is a geologic formation in Mexico. It preserves fossils dating back to the Paleogene period.