Casea was a small, sail-less pelycosaur that lived during the early Permian period . It looked like a fat lizard; it had 4 short, sprawling legs, a long tail, a small head, a bulky body, a huge rib cage, and a large gut (needed to digest its food). This plant-eater ate tough plants, like horsetails and ferns. It had no teeth in its lower jaw, but h...