While both groups survived as a whole, many species went extinct. Among the casualties were the shastasaurid ichthyosaurs, a group of whale-sized marine reptiles that could reach up to 21 metres long.

These marine reptiles, among the most massive ever identified, dominated the oceans during the dinosaur era. A team of British researchers, dedicated for eight years to the meticulous exploration ...

The fossilised remains of Britain’s largest ichthyosaur, colloquially known as a ‘Sea Dragon ... Often mistaken for ‘swimming dinosaurs’, ichthyosaurs were a highly successful group of marine reptiles ...

"We document the largest collection of fossil ... showing how large terrestrial dinosaurs like Centrosaurus shared space with marine animals in a mosaic of estuaries and barrier islands.

The creature would have been one of the largest ever known, behind only blue whales and dinosaurs, say scientists. The ancient jawbone was found near the village of Lilstock by fossil collector ...