Klettgau Formation
| Klettgau Formation | |
|---|---|
| Stratigraphic range: Carnian-Rhaetian ~ | |
| Type | Geological formation | 
| Unit of | Keuper | 
| Sub-units | Ergolz, Gansingen, Berlingen, Seebi, Gruhalde & Belchen Members | 
| Underlies | Staffelegg Formation | 
| Overlies | Bänkerjoch Formation | 
| Thickness | 30–60 m (98–197 ft) locally up to 75 m (246 ft) | 
| Lithology | |
| Primary | Mudstone, marl | 
| Other | Dolomite, sandstone | 
| Location | |
| Coordinates | 47°42′N 8°30′E / 47.7°N 8.5°E | 
| Approximate paleocoordinates | 35°12′N 10°42′E / 35.2°N 10.7°E | 
| Region | Aargau, Schaffhausen | 
| Country | Switzerland | 
| Type section | |
| Named for | Klettgau | 
| Named by | Jordan et al. | 
| Location | Seebi quarry | 
| Year defined | 2016 | 
The Klettgau Formation is a geological formation in Switzerland. It is Late Triassic in age, covering most of the mid to late Norian, the Carnian, and into the Rhaetian, spanning a period of 26-30 million years.