Genus Dimetrodon is a prehistoric reptile that lived over 280 million years ago during the Permian period. It was a carnivorous animal with a distinctive sail on its back, which scientists believe the animal used for thermoregulation or display purposes. While the scientific name genus dimetrodon is popular, it is not the only synonym used by researchers to refer to this ancient reptile. Other synonyms include Clepsydrops, Echelydrosaurus, and Naosaurus. Each of these names has been used at one point or another to describe the same animal, and scientists continue to study and learn more about this fascinating creature and its role in shaping the world as we know it today.