Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
Count: [g†g] 5c;15o;48f;453g; †1c;11o;84f;674g;1s [2 Oct 2018]
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
  Count: [g†g] 5c;15o;48f;453g; †1c;11o;84f;674g;1s [2 Oct 2018]
     Class †Aculearia Afanasieva, 1999
    Count: [g†g] 1o;1f;14g; †2o;9f;49g [24 Aug 2018]
       Order †Triangulata Afanasieva & Amon, 2003
      Count: [†g] †3f;12g [24 Aug 2018]
         1 Family †Ceratoikiscidae Holdsworth, 1969
        Count: [†g] †4g [24 Aug 2018]
         2 Family †Raphidociclicidae Afanasieva, 1999
        Count: [†g] †3g [24 Aug 2018]
         3 Family †Lapidopiscidae Deflandre, 1958
        Count: [†g] †5g [24 Aug 2018]