Elasmosaurus was a prehistoric sea creature that lived during the late Cretaceous period, roughly 80 million years ago. It was a large marine reptile, measuring up to 45 feet in length, and was one of the largest known plesiosaurs
Elasmosaurus was a prehistoric sea creature that lived during the late Cretaceous period, roughly 80 million years ago. It was a large marine reptile, measuring up to 45 feet in length, and was one of the largest known plesiosaurs