Acheloma (also known as Trematops milleri) is an extinct genus of temnospondyl that lived during the Early Permian. The type species is A. cumminsi. Trematops milleri has been synonymized with Acheloma. Like other trematopids, Acheloma was a large terrestrial carnivore. One species, A. dunni, may have been the top predator of the diverse Richards ...