Irhazer Shale

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. 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.

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