Elrhaz Formation

Elrhaz Formation
Stratigraphic range: Early Cretaceous (Barremian to Albian), 125–112 Ma
Outcrops of the formation near Gadoufaoua
TypeGeological formation
Unit ofTegama Group
UnderliesEchkar Formation
OverliesTazolé Formation
Lithology
PrimarySandstone
Location
Coordinates16°48′N 9°30′E / 16.8°N 9.5°E / 16.8; 9.5
Approximate paleocoordinates3°06′N 4°54′E / 3.1°N 4.9°E / 3.1; 4.9
RegionAfrica
Country Niger
ExtentTenere desert

The Elrhaz Formation is a geological formation in Niger, West Africa.

Its strata date back to the Early Cretaceous, about 125 to 112 million years ago. Dinosaur remains are among the fossils that have been recovered from the formation, alongside those of multiple species of crocodyliformes.