All rhynchosaurs, apart from the four Early and Middle Triassic monospecific genera, Eohyosaurus, Mesosuchus, Howesia and Noteosuchus, are included in this family.
All rhynchosaurs, except for the four Early and Middle Triassic monospecific genera Eohyosaurus, Mesosuchus, Howesia, and Noteosuchus, are encompassed by this family.