3007 - Very Large Mosasaur 'Marine Dinosaur' Fossil Lower Jaw. Cretaceous Period, circa 145-65 million years B.P. Large assembled section of a jaw with ten large teeth displaying dark brown patina, set on a sandstone matrix. 9.37 kg, 63 cm (24 3/8 in.).

Very Large Mosasaur 'Marine Dinosaur' Fossil Lower Jaw. Cretaceous Period, circa 145-65 million years B.P. Large assembled section of a jaw with ten large teeth displaying dark brown patina, set on a sandstone matrix. 9.37 kg, 63 cm (24 3/8 in.). From a Cambridgeshire, UK, collection. The Mosasaur is an extinct, large marine reptile 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. TimeLine Auctions follows a rigorous vetting process to ensure the authenticity and legality of all items, reinforcing our commitment to integrity and responsible trading. Each antiquity, antique, and coin lot undergoes thorough examination by a vetting committee of at least ten external specialists, professional trade association members, scientists, and archaeologists. See our website for more information.