Cacops

Cacops is an extinct genus of dissorophid amphibians that is known from the Early Permian of Texas. It was about 40 cm (16 inches) long, with a heavily built skull and an enormous otic notch enclosed with a bony bar; indicating an enormous eardrum. Edwin Colbert suggests that perhaps it was a nocturnal animal like modern frogs. The body was short, and the back was protected by a double row of armour plates. The legs were strong and indicate a terrestrial animal, and the tail was short.