Dinosaur hunters find 180-million-year-old 'sea dragon' skeleton with one-tonne skull

Ichthyosaurs, which were marine reptiles, first appeared around 250 million years ago and went extinct 90 million years ago, varying in size from one to more than 25 metres in length and resembling dolphins in general body shape.

The remains were dug out by a team of expert palaeontologists from around the UK in August and September.