Plesiosaurus Vertebra. The Plesiosaurus was a marine reptile, they grew to about 12 metres (38 feet) in length.
Fossil size 5″ x 2″ inches.
The image (left) shows the size comparison between the large Plesiosaur Vertebra and the Prehistoric Fish Vertebra, shows how massive the Plesiosaur was!
The Triassic Period – 250 million years ago.