Tolar Formation
| Tolar Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Geological formation | 
| Underlies | Arca Formation | 
| Thickness | Up to 1 km (0.62 mi) | 
| Lithology | |
| Primary | Breccia, conglomerate and sandstone | 
| Location | |
| Coordinates | 21°57′15″S 68°43′33″W / 21.9541°S 68.7259°W | 
| Country | Chile | 
| Extent | Conchi Viejo, Atacama Desert | 
| Type section | |
| Named by | Victor Maksaev | 
| Year defined | 1978 | 
The Tolar Formation is a Late Cretaceous to Paleocene-aged geological formation located in Chile.
Dinosaur remains are among the known fossils recovered from this formation.