Labyrinthodont was a prehistoric amphibian from what is now South Africa. It lived during the Permian.
Labyrinthodont lived during the Late Permian period 260-248 million years ago.
Being a giant amphibian, Labyrinthodont is about 2.5 meters long. They laid in ambush underwater as a crocodiles does and labyrinthodonts depended heavily on water as other amphibians do. They could also live with several others of their kind.
Before their water environment dried up, these giant amphibians could burrow into the damp mud and formed a cocoon around themselves in a last ditch attempt to sit out the drought, but if they were found in their torpid state by predators, they'd be helpless.