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 †Pyramidata Afanasieva & Amon, 2005
         Family †Tormentidaeᵀ Nazarov & Ormiston, 1983
           Subfamily †Rectotormentinae Afanasieva, 2000
             1 Genus †Octatormentum Nazarov & Ormiston, 1985
             2 Genus †Rectotormentum Nazarov & Ormiston, 1985