Erpetosuchus granti (Newton 1894) Late Carnian, Late Triassic, ~60 cm in length. Only the front half of Erpetosuchus is known. Erpetosuchus was derived from a sister to Terrestrisuchus. Although Erpetosuchus was a sister to Litargosuchus, it represented the last of its lineage, judging by its odd morphology.
Distinct from Terrestrisuchus the skull of Erpetosuchus was most unusual in palatal view where the maxillae and jugals expanded medially to produce wide flat plates that crowded the pterygoid, palatine and ectoptergyoid together in the middle. Teeth erupted only in the anterior jaws. The orbits opened dorsally.
The light build of its skeleton along with its phylogenetic nesting suggests that Erpetosuchus was a likely biped.