The Irhazer Shale () 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.Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607. The dinosaur Spinophorosaurus is known from the formation.
Description As the overlying Tiouraren Formation of the Irhazer Group, the formation previously had been assigned an Early Cretaceous age.North of Aderbissinat at Fossilworks.orgIfayen Ignère at Fossilworks.orgIn Gall at Fossilworks.org
Fossil content The following fossils were reported from the formation: Allosauridae indet. Elaphrosaurus iguidiensis Ornithopoda indet. Paravipus didactyloides Spinosauridae or Megalosauridae indet. Spinophorosaurus nigerensis
See also
List of dinosaur-bearing rock formations List of stratigraphic units with ornithischian tracks Ornithopod tracks Lists of fossiliferous stratigraphic units in Africa List of fossiliferous stratigraphic units in Niger Geology of Niger
References
Bibliography Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. .
Further reading A. F. d. Lapparent. (1960). Les Dinosauriens du "Continental intercalaire" du Saharal central [The dinosaurs of the "Continental Intercalaire" of the central Sahara]. Mémoires de la Société géologique de France, nouvelle série 39(88A):1-57 K. Remes, F. Ortega, I. Fierro, U. Joger, R. Kosma, J. M. M. Ferrer, Project, Niger Project, O. A. Ide and A. Maga. (2009). A new basal sauropod dinosaur from the Middle Jurassic of Niger and the early evolution of Sauropoda. PLoS One 4(9):e6924:1-13