Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class Sphaerellaria Haeckel, 1881
       Order Sphaerellata Haeckel, 1887
         Family †Pantanelliidae Pessagno, 1977
           Subfamily †Pantanelliinae Pessagno, 1977
             Genus †Cecrops Pessagno, 1977, nom. illeg.