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Eryops (pronounced EAR-ee-ops) (meaning "long eye" or "drawn-out eye" in Greek) was a common, primitive labyrinthodontid amphibian that lived in Permian period swamps. This meat-eater had a stout body with very wide ribs, a strong spine, four short, strong legs, a short tail, and a wide, elongated skull with many sharp teeth. Its teeth had enamel with a folded pattern. Eryops was about 5 feet long, one of the largest land animals of its time. Eryops was a fierce predator on land and in the water; it may have eaten mostly fish, small reptiles and amphibians. It may have been preyed upon by Dimetrodon, which was a faster moving animal. Eryops may have been slow moving on land. Eryops was named by E. D. Cope in 1887.