Eryops (/ˈɛri.ɒps/; from Greek ἐρύειν, eryein, 'drawn-out' + ὤψ, ops, 'face', because most of its skull was in front of its eyes) is a genus of extinct, amphibious temnospondyls.

[3] The palate, or roof of the mouth, contained three pairs of backward-curved fangs, and was covered in backward-pointing bony projections which would have been used to trap slippery prey once caught.

The three bones met at a single point in the center of the pelvic triangle, called the acetabulum, providing a surface of articulation for the femur.

E. megacephalus fossils have been found only in rocks dated to the early Permian period (Sakmarian age, about 295 million years ago) in the southwestern United States, primarily in the Admiral Formation of the Texas Red Beds.

[9] Supposed Eryops fossils found in older Pennsylvanian epoch rocks of the Conemaugh Group in West Virginia[10] also turned out to be remains of Glaukerpeton.

[9] In 2005, a skull clearly belonging to Eryops was found in upper Pennsylvanian epoch rocks of the El Cobre Canyon Formation in New Mexico, representing the oldest known specimen.

[13] Eryops lived in lowland habitats in and around ponds, streams, and rivers, and the arrangement and shape of their teeth suggests that they probably ate mostly large fish and aquatic tetrapods.

[1] Like other large primitive temnospondyls, Eryops would have grown slowly and gradually from aquatic larvae, but they did not go through a major metamorphosis like many modern amphibians.