Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class Spumellaria Ehrenberg, 1875
       Order †Spongiata Afanasieva & Amon, 2003
         Family †Spongopolyentactiniidae Nazarov, 1975
           Subfamily †Somphoentactiniinae Kozur & Mostler, 1981
             1 Genus †Adamas Afanasieva, 2000, nom. illeg. see Genus Adamasirad Afanasieva, 2009
             2 Genus †Somphoentactinia Nazarov, 1975
             3 Genus †Spongosphaera Won, 1997, nom. illeg.