Class [Reptilia] Linnaeus, 1758 - reptiles
   Subclass †Placodontomorpha Kuhn, 1968
     Order †Placodontia Owen, 1859
       Suborder †Cyamodontoidea Peyer & Kuhn-Schnyder, 1955
         1 Family †Cyamodontidae Nopcsa, 1923
         2 Family †Placochelyidae Jaekel, 1907