Dimetrodon
Type	Prehistoric Synapsid
Behavior	Aggressive
Synonyms	Edaphosaurus, Ianthasaurus
Available in	Scribblenauts, Super Scribblenauts, Scribblenauts Remix, Scribblenauts Unlimited, Scribblenauts Unmasked, Scribblenauts Showdown, Scribblenauts Mega Pack

Dimetrodon is an aggressive, carnivorous synapsid dating from the Permian era, with a sail on its back. Although Dimetrodon was more closely related to mammals than to any dinosaur, and predated the first dinosaur by 40 million years, it is often mistaken as an dinosaur by the general public.