| Biblián Formation | |
| Type: | Geological formation |
| Age: | Early Miocene (Colhuehuapian) ~ |
| Period: | Burdigalian |
| Namedfor: | Biblián, Biblián Canton |
| Region: | Cañar Province |
| Coordinates: | -2.8°N -78.9°W |
| Paleocoordinates: | -3.5°N -76°W |
| Underlies: | Loyola Formation |
| Extent: | Cuenca Basin |
The Biblián Formation is an Early Miocene (Colhuehuapian in the SALMA classification) geologic formation of the Cuenca Basin in Ecuador. Fossils of Xenastrapotherium aequatorialis have been found in the formation.[1]