Sables et Grès à Trigonia gibbosa
| Sables et Grès à Trigonia gibbosa | |
|---|---|
| Stratigraphic range: Late Tithonian ~ | |
| Type | Geological formation |
| Lithology | |
| Primary | Gravel, sandstone |
| Location | |
| Region | Pas de Calais |
| Country | France |
The Sables et Grès à Trigonia gibbosa is a geological formation in northwestern France. It dates back to the Late Jurassic. It is named after Trigonia gibbosa, which can be found in abundance in the formation.