Rock formation · Agadez Region
Elrhaz Formation
Early Cretaceous (Aptian-Albian) river sandstones of the Tegama Group at Gadoufaoua, Niger; source of Nigersaurus and Ouranosaurus.
A formation is a body of rock laid down in one setting over a stretch of time. 2 dinosaurs in DinoDex are known from fossils found in it.
