Irhazer Shale
| Irhazer Shale Irhazer II Formation | |
|---|---|
| Stratigraphic range: Middle Jurassic ~ Middle Jurassic | |
Paleoenvironment reconstruction | |
| Type | Geological formation |
| Unit of | Irhazer Group |
| Underlies | Tiouraren Formation |
| Overlies | Assaouas Formation |
| Lithology | |
| Primary | Shale, claystone |
| Other | Siltstone, sandstone |
| Location | |
| Coordinates | 16°42′N 7°54′E / 16.7°N 7.9°E |
| Approximate paleocoordinates | 8°18′N 2°36′E / 8.3°N 2.6°E |
| Region | Agadez Region |
| Country | Niger |
| Extent | Iullemmeden Basin |
| Type section | |
| Named for | Irhazer Izane |
The Irhazer Shale (French: Argiles de l'Irhazer) or Irhazer II Formation is a Middle Jurassic geologic formation of the Irhazer Group in the Agadez Region of Niger. Fossil ornithopod tracks have been reported from the formation. The dinosaur Spinophorosaurus is known from the formation.