Amphisbaenia Gray, 1844 - amphisbaenians see Suborder Amphisbaenia Gray, 1844
   1 Family Rhineuridae Vanzolini, 1951
   2.1.1 Family Amphisbaenidae Gray, 1825 - worm lizards
   2.1.2 Family Trogonophidae Vanzolini, 1951 - shorthead worm lizards see Family Trogonophiidae Vanzolini, 1951
   2.2.1 Family Bipedidae Taylor, 1951 - two-legged worm lizards
   2.2.2.1 Family Cadeidae Vidal & Hedges, 2007
   2.2.2.2 Family Blanidae Kearney, 2003