These and many other types of ancient reptiles are often wrongly called dinosaurs. Marine reptiles, such as ichthyosaurs, plesiosaurs and mosasaurs are not dinosaurs. Nor is Dimetrodon or other ...

The series has introduced more diverse and ferocious creatures over time, including unique fictional genetic creations not found in real-life dinosaur history. From the Dimetrodon to the ...

One example of these mammals would be the Dimetrodon, which had a large, sail-like structure on its back. Some of the reptiles living on land evolved to become dinosaurs during the mid-Triassic ...