Dimetrodon Skull - Early Permian

3D Model

This skull is a Dimetrodon species (species unknown). The Dimetrodons lived in the Early Permian around 295-272 million years ago. Most fossils come from the southwestern US and Germany. Dimetrodons lived in the Permian, which occured prior to the beginning of the Mesozoic Era, which marks the appearance of dinosaurs. In fact, Dimetrodons are more closely related to mammanls than to modern reptiles. Description condensed from Wikipedia with links to Wikimedia images.