An ichthyosaur fossil, Dinosaurland Fossil Museum, Lyme Regis, England

We’re looking at the fossil of an ichthyosaur at the Dinosaurland Fossil Museum in Lyme Regis, on the Jurassic Coast in Dorset, England. The word 'ichthyosaur' means 'fish lizard', an appropriate name for the large extinct marine reptiles that swam the oceans from around 250 million years ago and survived until about 90 million years ago.
© Christopher Jones/Alamy