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| Paso del Sapo Formation | |
|---|---|
| Stratigraphic range: Maastrichtian ~70–66 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓ | |
| Type | Geological formation |
| Underlies | La Colonia & Lefipán Formations |
| Overlies | Cerro Barcino Formation |
| Lithology | |
| Primary | Siltstone |
| Location | |
| Coordinates | 42°42′S 70°00′W / 42.7°S 70.0°W / -42.7; -70.0 |
| Approximate paleocoordinates | 44°54′S 58°30′W / 44.9°S 58.5°W / -44.9; -58.5 |
| Region | Chubut Province |
| Country | Argentina |
| Extent | Cañadón Asfalto Basin |
| Type section | |
| Named for | Paso del Sapo |
  Paso del Sapo Formation (Argentina) | |
The Paso del Sapo Formation is a Maastrichtian geologic formation of the Cañadón Asfalto Basin in Argentina. The siltstones of the formation were deposited in a lacustrine environment. Plesiosaur remains are among the fossils that have been recovered from its strata.
Fossil content
- Aristonectes parvidens
- Ptychoceratodus sp.
- Flora
See also
References
- Cañadón del Loro at Fossilworks.org
- Geologic formations of Argentina
- Upper Cretaceous Series of South America
- Cretaceous Argentina
- Maastrichtian Stage of South America
- Siltstone formations
- Lacustrine deposits
- Cañadón Asfalto Basin
- Fossiliferous stratigraphic units of South America
- Paleontology in Argentina
- Geology of Patagonia
- Geology of Chubut Province