British paleontologists have found signs of a degenerative condition similar to human arthritis in the jaw of a pliosaur, an ancient sea reptile that lived 150 million years ago. Such a disease has never been described before in fossilized Jurassic reptiles. Artist’s restoration of the pliosaur Pliosaurus (Dmitry Bogdanov) The scientists studied a giant specimen of the pliosaur Pliosaurus dating from the Upper Jurassic. The specimen was found in...
