A Pteranodon and Plesiosaur fossil hit the auction block at Sotheby’s, fetching top bids.

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 ...

A 100-million-year-old plesiosaur fossil has been found by a group of friends in the Australian outback. Scientists say the complete fossil is a rare and exciting discovery. Video by Isabelle Rodd ...

It was found near the site where a plesiosaur fossil was unearthed in 2004, the board of education announced on Aug. 26. A research team said the two fossilized species are some of the oldest in ...