Cretaceous Period, 145-65 million years B.P. A lower jaw section displaying two teeth from the Mosasaur Prognathodon sp.; held in a white card collector's tray. 88 grams, 85 mm length (95 grams total, 90 x 60 mm including tray) (3 1/3 in. (3 1/2 x 2 1/3 in.)). Phosphate mine region, Khouribga, Morocco, North Africa. Acquired 1950s-1960s. Bristol paleontological collection. [No Reserve]