Cretaceous Period, 145-65 million years B.P.. An assemblage of Mosasaur prognathodon teeth, attached to a jaw-shaped matrix for display; all set in a composite matrix. 6.59 kg, 37 cm (14 1/2 in.).

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.

From a Cambridgeshire, UK, collection. [No Reserve]