A display specimen of a partial Liopleurodon vertebra from Weymouth, Dorset, UK, the vertebra has been dated to the Jurassic period, Kimmeridgian stage. Liopleurodon was a colossal reptile which swam in the Jurassic seas over 155 million years ago. Fossil remains suggest that it could grow up to almost 7 meters in length (21 feet) Its massive jaws which made up a quarter of its over all body length. Its name is derived from the ancient Greek words which mean 'smooth sided tooth' It was the apex predator of its time and environment, with little else to fear except other liopleurodons. It belongs to the sub group of short necked plesiosaur family of marine reptiles, characterised by their four flipper mode of propulsion. This sample weighs approximately 689 grams and measures roughly 16.6 x 12.9 x 3 cm. This specimen would make a great addition to any smaller fossil collection.