Myliobatis dixoni 

Agassiz, 1843

                                      lenght 4.3 cm width 7.1

The teeth of this 150 cm long ray are arranged in a tooth plate in the lower and upper jaw and each consists of 7 rows.
 The middle row is broad and hexagonal with a smooth, slightly convex, oral surface, with wrinkled surfaces on the lip
 and tongue sides. The 3 rows on the side are narrow and hexagonal, pentagonal or triangula.

Éocène - Yprésien - Khouribga