Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class Sphaerellaria Haeckel, 1881
       Order †Inaniguttata Nazarov & Ormiston, 1984
         Family †Oriundoguttidae Afanasieva, 1999
           Subfamily †Oriundoguttinae Afanasieva, 1999
             1 Genus †Oriundogutta Nazarov & Ormiston, 1990
             2 Genus †Zadrappolus Furutani, 1990