Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class Stauraxonaria Afanasieva & Amon, 2005
       Order Spongurata Haeckel, 1862
         Family Sponguridae Haeckel, 1862
           1 Genus Amphibrachium Haeckel, 1881, nom. illeg.
           2 Genus †Patellula Kozlova, 1972
           3 Genus Spongocore Haeckel, 1887
           4 Genus †Prunobrachium Kozlova, 1966
           5 Genus Spongurus Haeckel, 1860