Rhynchosauria

Rhynchosaurs are a group of extinct herbivorous Triassicarchosauromorphreptiles, belonging to the order Rhynchosauria. Rhynchosaurs are distinguished by their triangular skulls and elongated, beak like premaxillary bones. Rhynchosaurs first appeared in the Early Triassic, reaching their broadest abundance and a global distribution during the Carnian stage of the Late Triassic, before dying out early in the succeeding Norian stage.