| Ardengost Formation | |
|---|---|
| Stratigraphic range: Carboniferous | |
| Grotte noisetier, Fréchet-Aure, Hautes-Pyrénées | |
| Type | Formation |
| Location | |
| Country | France |
The Ardengost Formation is a geologic formation in France. It preserves fossils dating back to the Carboniferous period.