What Does Plasiosaur Mean?

A Plasiosaur has a body shape that is near to that of a lizard. They evolved from large lizards that originally lived on land, but then about 200 million years ago in the Triassic era they began adapting to a marine environment. The descendants that stayed on land eventually became bears and weasels,. whereas the ones that returned to the water eventually became seals with their legs turning into flippers. And that could explain why a veterinary student Arthur Grant thought the Loch Ness Monster looked like a cross between a seal and a Plasiosaurus.