Pholidogaster pisciformes (Huxley 1862, Panchen 1975; Visean, Early Carboniferous, 340 mya) was originally considered a labyrinthodont and an anthracosaur, but here nests between Colosteus and Greererpeton among the Tetrapoda.

The new skull reconstruction is narrower than in Panchen 1975 to match the premaxilla and pectoral girdle. The premaxilla carried a lateral fang and the dentary had a corresponding slot for it. The tail was little different from that found in Osteolepis, including the slight upturn, like a shark's tail.

The interclavicle and clavicles extend beneath the mandibles. The scapula and coracoid were tiny elements medial to the clavicles and cleithra. The fingers did not ossify. The pelvis is well ossified with an acetabulum dorsal to the pubis. The hind limb includes metatarsals and a few digits. The ossified scales that covered the body in Osteolepis and Colosteus are not present here.