The plesiosaur, considered a successful marine ... MORE: Well-preserved remains of saber-toothed kitten found frozen in ...

Scientists said they identified fossils of plesiosaurs in an ancient river system, which may indicate they lived in freshwater areas — like Loch Ness in Scotland — and not only seawater Jason ...

A “pellet” found in a plesiosaur fossil unearthed in Kagoshima Prefecture indicates the prehistoric creature regurgitated indigestible parts of its prey, much like modern birds and alligators ...