The Dimetrodon is often referred to as a dinosaur. However, it is a prehistoric reptile, a so-called pelycosaur.
The Dimetrodon is often called a dinosaur. However, he is one prehistoric reptile, a so-called pelycosaur. His back sail was made of skin and bones and helped him to sunbathe faster to warm up. When he wanted to cool off, he raised his sail parallel to the sun's rays.