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 †Radiiformata Afanasieva & Amon, 2005
         Family †Latentifistulidaeᵀ Nazarov & Ormiston, 1983
           Subfamily †Latentifistulinae Nazarov & Ormiston, 1983
             1 Genus †Ishigaum De Wever & Caridroit, 1984
             2 Genus †Latentifistula Nazarov & Ormiston, 1983
             3 Genus †Pseudotormentus De Wever & Caridroit, 1984