Mosasaur 'Marine Dinosaur' Skull. Cretaceous Period, 145-65 million years B.P. A magnificent, full three-dimensional fossil skull of a juvenile Mosasaur Prognathodon with upper and lower mandibles, eye sockets and brain cavity; including jaw and teeth; some restoration; with custom-made display stand. 5.8 kg total, 57 cm high including stand (22 1/2 in.). [A video of this lot is available to view on Timeline Auctions Website] From a Lincolnshire, UK, collection. Property of a Cambridgeshire gentleman. This lot has been checked against the Interpol Database of stolen works of art and is accompanied by search certificate no.12491-230295. The Mosasaur is an extinct, large marine reptile dinosaur with an elongated 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.