Igdamanosaurus

Igdamanosaurus is a genus of mosasaur from the Maastrichtian stage of the Late Cretaceous of Africa.
References
Fossil Vertebrates - Fauna and Concepts by W. Sargeant and William A.S. Sargeant (page 41)
Ancient Marine Reptiles by Jack M. Callaway and Elizabeth L. Nicholls (page 287)
Vertebrate Fossils and the Evolution of Scientific Concepts by W. Sargeant (page 547)