The soft tissue of a plesiosaur has been studied in detail for the first time, revealing that the marine reptiles, which lived during the age of dinosaurs and went extinct at the same time ...

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 ...

An "exceptionally well-preserved" fossil may hold the key to understanding plesiosaur evolution. The newly discovered plesiosaur fossil, uncovered in Germany, suggests that long-necked marine ...