Vertebrata Cuvier, 1812 - vertebrates
   Gnathostomata
     Teleostomi
       Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
         Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988] - amniotes
           Class Reptilia Linnaeus, 1758 [paraphyletic] - reptiles
             Subclass Anapsida Osborn, 1903 - anapsids
               Order †Captorhinida
                 Suborder †Millerosauroidea [monotypic] see Order Millerosauria Watson, 1957
                   Family †Millerettidae Romer, 1956 - millerettids
                     Genus †Nanomilleretta Broom & Robinson, 1948, nom. dub.