Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class †Aculearia Afanasieva, 1999
       Order †Albaillellata Deflandre, 1953
         Family †Follicucullidae Ormiston & Babcock, 1979
           1 Genus †Follicucullus Ormiston & Babcock, 1979
           2 Genus †Parafollicucullus Holdsworth & Jones, 1980
           3 Genus †Pseudoalbaillella Holdsworth & Jones, 1980