| Conejo Formation | |
|---|---|
| Stratigraphic range: Turonian-Santonian ~ | |
| Type | Geological formation |
| Unit of | Villeta Group |
| Underlies | Guadalupe Group |
| Overlies | La Frontera Formation |
| Thickness | up to 1,022 m (3,353 ft) |
| Lithology | |
| Primary | Sandstone, shale |
| Other | Limestone |
| Location | |
| Coordinates | 5°35′40.7″N 73°12′59.6″W / 5.594639°N 73.216556°W |
| Region | Altiplano Cundiboyacense Eastern Ranges, Andes |
| Country |  Colombia |
| Type section | |
| Named for | El Conejo Hill |
| Named by | Renzoni |
| Location | Toca, Boyacá |
| Year defined | 1981 |
| Coordinates | 5°35′40.7″N 73°12′59.6″W / 5.594639°N 73.216556°W |
| Region | Cundinamarca, Boyacá |
| Country | Colombia |
 Paleogeography of Northern South America 90 Ma, by Ron Blakey | |
The Conejo Formation (Spanish: Formación Conejo, K2C, Kscn) is a fossiliferous geological formation of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The uppermost unit of the Villeta Group, a sequence of shales and sandstones dates to the Late Cretaceous period; Turonian, Coniacian and Santonian epochs, and has a maximum thickness of 1,022 metres (3,353 ft).