Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class Nassellaria Ehrenberg, 1847
       Order †Pylomariata Afanasieva, 1999
         Superfamily †Pylentonemoidea Deflandre, 1963
           Family †Pylentonemidae Deflandre, 1963
             Subfamily †Archocyrtiinae Kozur & Mostler, 1981
               1 Genus †Allocyrtium Afanasjeva, 1986
               2 Genus †Archocyrtium Deflandre, 1972
               3 Genus †Cerarchocyrtium Deflandre, 1973
               4 Genus †Cyrtisphaeractenium Deflandre, 1972
               5 Genus †Cyrtisphaeronemium Deflandre, 1972
               6 Genus †Deflandrellium Cheng, 1986
               7 Genus †Mostlerium Cheng, 1986
               8 Genus †Robotium Cheng, 1986
               9 Genus †Pararchocyrtium Deflandre, 1972