| Colorado Formation | |
|---|---|
| Stratigraphic range: Campanian-Maastrichtian | |
| Type | Geological formation |
| Overlies | Paleozoic basement |
| Thickness | 30 m (98 ft) |
| Lithology | |
| Primary | Sandstone |
| Other | Conglomerate |
| Location | |
| Coordinates | 38°12′S 64°30′W / 38.2°S 64.5°W |
| Approximate paleocoordinates | 41°18′S 49°48′W / 41.3°S 49.8°W |
| Region | La Pampa Province |
| Country | Argentina |
| Extent | Colorado Basin |
| Type section | |
| Named for | Colorado River |
  Colorado Formation, Argentina (Argentina) | |
The Colorado Formation is a Late Cretaceous (Campanian to Maastrichtian geologic formation that is exposed within the Colorado Basin in the southeastern part of La Pampa Province, Argentina. Fossil dinosaur eggs of Sphaerovum erbeni have been reported from the nonmarine, fluvial strata of this formation.[1][2]
- ^ Casadio, S., T. Manera, A. Parras, C. L. Montalvo (2002) Huevos de dinosaurios (Faveoloolithidae) del Cretácico superior de la Cuenca del Colorado, Provincia de La Pampa, Argentina. Ameghiniana. 39(3):285–293.
- ^ Weishampel; et al. (2004). "Dinosaur distribution". In Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (eds.). The dinosauria (2nd ed.). Berkeley: Univ. of California Press. pp. 604. ISBN 978-0-520-24209-8.