Synonym: Saurii Latreille 1800
Parent taxon: Squamata according to M. J. Benton 1985
Sister taxa: Amphisbaenia, Anomalopsis, Ardeosaurus, Bavarisaurus, Cuencasaurus, Eichstaettisaurus, Eolacerta, Gekkonomorpha, Gerrhosauridae, Hoyalacerta, Huehuecuetzpalli, Iguania, Jucaraseps, Lacertilia, Lamiasaurus, Liushusaurus, Mosasauria, Olindalacerta, Paikasisaurus, Paramacellodidae, Paraplacosauriops, Parasaurillus, Parviraptor, Polyglyphanodontia, Pseudosaurillus, Scandensia, Scincogekkonomorpha, Scleroglossa, Vialorophis, Yabeinosaurus
Subtaxa: Alethesaurus, Anguisaurus, Ascalabota, Dactylopodes, Eolacertilia, Glaphyrorhynchus, Harpagosaurus, Labyrinthodontes, Lanceosaurus, Megasaurus, Menodon, Nexipodes, Pachypodes, Prionosaurus, Pterodactyli, Rysosteus, Tomodon