Edaphosaurus

Edaphosaurus (meaning "pavement lizard") is a species of pelycosaur reptile that lived in the Carboniferous and Permian periods around 300 to 280 million years ago. An prehistoric herbivore, it was related to the carnivorous Dimetrodon, which were ancestors to mammals and had no relation to dinosaurs. Despite existing long before the dinosaurs, Edaphosaurus has appeared with dinosaurs in assorted Disney theme park attractions.