 Whether many of the striking primitive features were repeated in other genera is unknown.The order of the portion of bones in the skull roof of Oedaleops and "Eothyris parkeyi" conforms to a basic pattern in primitive reptiles and is shared with various groups such as millerosaurs and captorhinomorphs, and ophiacodonts.The major distinguishing features of the skull are that it possessed a pair of long, large, fang-like teeth on each side of the upper jaw.