| Cardiel Formation | |
|---|---|
| Stratigraphic range: Maastrichtian | |
| Type | Geological formation |
| Underlies | Slogget & San Julián Formations |
| Overlies | Divisadero & Kachaike Formations |
| Lithology | |
| Primary | Sandstone, conglomerate |
| Other | Tuff |
| Location | |
| Coordinates | 49°00′S 71°24′W / 49.0°S 71.4°W |
| Approximate paleocoordinates | 50°54′S 60°54′W / 50.9°S 60.9°W |
| Region | Santa Cruz Province |
| Country | Argentina |
| Extent | Austral Basin |
| Type section | |
| Named for | Lake Cardiel |
| Named by | Russo & Flores |
| Year defined | 1971 |
  Cardiel Formation (Argentina) | |
The Cardiel Formation is a Maastrichtian geologic formation of the Austral Basin in Santa Cruz Province, Argentina. The formation comprises sandstones and conglomerates with abundant tuff beds.[1] The formation is overlain by the Slogget and San Julián Formations and overlies the Divisadero and Kachaike Formations.[2] Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.[3]