†order Rhynchosauria Osborn 1903 (rhynchosaur)
Full reference: H. F. Osborn. 1903. The reptilian subclasses Diapsida and Synapsida and the early history of the Diaptosauria. Memoirs of the American Museum of Natural History 1(8):451-519
Parent taxon: Archosauromorpha according to M. J. Benton 1990
Sister taxa: Archosauriformes, Azendohsaurus, Czatkowiella, Drepanosauridae, Mecistotrachelos, Megalancosauridae, Noteosuchus, Prolacerta, Protorosauria, Teraterpetidae, Trilophosauria, Trilophosauridae
Subtaxa: Ammorhynchus, Bentonyx, Howesia, Hyperodapedontidae, Hyperodapedontinae, Mesodapedon, Mesosuchidia, Mesosuchus, Rhynchosauroidea
Ecology: herbivore