Teraterpeton hrynewichorum (Sues 2003) Late Triassic, ~215 mya, was described as euryapsid (lacking a lateral temporal fenestra) and possibly related to the rhynchocephalian, Trilophosaurus on that basis. Here Teraterpeton is derived from Diandongosuchus but with a stretched out rostrum and far fewer, smaller teeth.
Distinct from Diandongosuchus, the skull had a larger antorbital fenestra, made larger by confluence with the naris. The teeth had the multiple cusps of a plant eater.
The pedal(?) unguals are robust, but note the disparate sizes, distinct from Diandongosuchus.