Phylum Porifera Grant, 1836 - sponges
   Class Hexactinellida Schmidt, 1870 - hexactinellids
     Subclass Amphidiscophora Schulze, 1886
       Order Reticulosa Reid, 1958
         Superfamily †Dictyospongioidea Hall & Clarke, 1899
           Family †Dictyospongiidae Hall & Clarke, 1898
             Subfamily †Calathospongiinae Hall & Clarke, 1898
               Genus †Cryptodictya Hall, 1890
               Genus †Hydriodictya Hall & Clarke, 1898
               Genus †Lyrodictya Hall, 1884