Youngina
Prolacerta
Squamata
Gephyrosaurus
Diphydontosaurus
Planocephalosaurus
Palaeopleurosaurus
Clevosaurus
Brachyrhinodon
Polysphenodon
Theretairus
Sphenovipera_jimmysjoyi
Sphenodon
Cynosphenodon
Zapatadon
Pamizinsaurus
Sapheosaurus
Kallimodon
Homoeosaurus
Toxolophosaurus
Eilenodon
Ankylosphenodon