Cretaceous Period, 67-65 million years BP. An exceptionally large and spectacular fossil Mosasaur dinosaur skull on matrix showing both sides of both upper and lower jaws, with dentition; the main skull compressed during fossilisation and thus fragmented but well preserved; the reverse of the matrix with applied plaster reinforcement. 164 kg, 140 x 100cm (55 x 39 1/4"). From an East Anglian, UK, collection; from the phosphate beds, Oved Zem, Morocco; this lot has been checked against the Interpol Database of stolen works of art and is accompanied by AIAD certificate number no.10930-180710. The Mosasaur is an extinct, large marine reptile dinosaur with a snake-like body, long snout and paddle-like limbs. found worldwide, they competed with other well-known sea predators of the Late Cretaceous, such as plesiosaurs and ichthyosaurs, for food, existing primarily on a diet of ammonoids, cuttlefish and fish. Condition Report Fine condition.