Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class Nassellaria Ehrenberg, 1847
       Order Cyrtidinata Haeckel, 1862
         Superfamily Eucyrtidioidea Ehrenberg, 1847
           Family †Pseudodictyomitridae Pessagno, 1977
             1 Genus †Corum Blome, 1984
             2 Genus †Latium Blome, 1984
             3 Genus †Loopus Yang, 1993
             4 Genus †Pachus Blome, 1984
             5 Genus †Pseudodictyomitra Pessagno, 1977
             6 Genus †Shana Wu & Pessagno, 1993, nom. illeg.