| Vilquechico Formation | |
|---|---|
| Stratigraphic range: Late Campanian-Late Maastrichtian ~ | |
| Type | Geological formation | 
| Underlies | Auzangate Formation | 
| Overlies | Ayabacas Formation | 
| Lithology | |
| Primary | Sandstone | 
| Other | Shale | 
| Location | |
| Coordinates | 15°13′03″S69°40′56″W / 15.21750°S 69.68222°W | 
| Region | Puno Department | 
| Country | Peru | 
| Type section | |
| Named for | Vilquechico | 
|   Paleogeography of Northern South America, 65 Ma by Ron Blakey | |
The Vilquechico Formation is a Late Campanian to Late Maastrichtian geologic formation in southern Peru. Fossil ornithopod tracks have been reported from the formation. [1] The formation overlies the Ayabacas Formation and is overlain by the Auzangate Formation. [2]
In the formation, tracks of the following species have been found: [3] [4]