Rhytidosteus

Rhytidosteus
Temporal range: Early Triassic
Illustrations of the skull and a cross section of the tooth of Rhytidosteus capensis
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Clade: Tetrapoda
Order: Temnospondyli
Suborder: Stereospondyli
Superfamily: Rhytidosteoidea (?)
Family: Rhytidosteidae (?)
Genus: Rhytidosteus
Owen, 1884
Type species
Rhytidosteus capensis
Owen, 1884

Rhytidosteus is an extinct genus of temnospondyl amphibian from the Early Triassic of South Africa. Initially described by Sir Richard Owen in 1884, the type species Rhytidosteus capensis was compared to the known labyrinthodont Mastodonsaurus and determined to be a unique species.

Rhytidosteus uralensis originally published and described by Shishkin from the Orenberg region of Russia, has since been determined to be a junior synonym of R. capensis.