Dukamaje Formation

The Dukamaje Formation is a geological formation in Niger and Nigeria whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation. A wealth of Mosasaur fossils have also been recovered from this formation, particularly from the area around Mt. Igdaman.

Fossil content

 * Other reptiles


 * Sokotosuchus ianwilsoni
 * Palaeophis sp.
 * Podocnemis sp.
 * Trematochampsa taqueti
 * Libycosuchus sp.


 * Fishes


 * Asteracanthus aegyptiacus
 * Igdabatis sigmodon
 * Lamna nigeriana
 * Schizorhiza stromeri
 * Stephanodus lybicus
 * Stratodus apicalis
 * Ischyrhiza nigeriensis
 * Ceratodus sp.
 * Ginglymostoma sp.
 * Pycnodus sp.