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 nests as a derived chanaresuchid but with a stretched out rostrum and far fewer, smaller teeth.
Distinct from Chanaresuchus, the skull had a larger antorbital fenestra and a narrower configuration in dorsal view.
The pedal(?) unguals are robust, but note the disparate sizes, as in Chanaresuchus.