Class Reptilia Linnaeus, 1758 - reptiles
   Subclass Lepidosauria Duméril & Bibron, 1839
     Order Squamata Oppel, 1811
       Suborder Sauria McCartney, 1802 - lizards see Clade Sauria Macartney 1802 [Gauthier & de Queiroz 2020]
         Infraorder Platynota Baur, 1890 see Infraorder Anguimorpha Fürbringer, 1900
           1 Family Helodermatidae Gray, 1837 - Gila monsters
           2 Family Lanthanotidae Steindachner, 1877 - earless monitors
           3 Family Varanidae Gray, 1827 - monitor lizards
           4 Family †Aigialosauridae Kramberger, 1892 - aigialosaurs
           5 Family †Dolichosauridae Gervais, 1852 - dolichosaurs
           6 Family †Mosasauridae Gervais, 1853 - mosasaurs