Titanosaurs were sauropods - four-legged herbivorous dinosaurs with long necks and tails. Their remains have been found around the world but this is the first evidence they may have roamed Antarctica. The new specimen was discovered on James Ross Island by an Argentinian-led team. They identified it as belonging to a lithostrotian titanosaur from the Late Cretaceous period of around 70 million years ago. The land mass was then rich in plant life.