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
         1 Superfamily †Proventocitoidea Aitchison, 1998 [monotypic]
         2 Superfamily †Cessipyloroidea Afanasieva, 1999
         3 Superfamily †Pylentonemoidea Deflandre, 1963
         4 Superfamily †Popofskyelloidea Deflandre, 1964