The Echkar Formation is a geological formation comprising sandstones and claystones in the Agadez Region of Niger, central Africa.
Image: Araripesuchus patagonicus SEND
Image: Bahariasaurus ingens, like megaraptora
Image: Ceratodus
Image: Elaphrosaurus
The Elrhaz Formation is a geological formation in Niger, West Africa.
Reconstructed skeleton of an anhanguerid from the formation
Dinosaurs of Elrhaz formation
Neoceratodus forsteri, a modern species
Image: Anatosuchus BW