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 Stauraxonaria Afanasieva & Amon, 2005
    Count: [g†g] 5o;11f;59g; †3o;25f;129g [6 Sep 2018]
       Order Pyloniata Haeckel, 1881
      Count: [g†g] 4f;16g; †6f;29g [4 Sep 2018]
         Superfamily Larnacillioidea Haeckel, 1887
        Count: [g†g] 2f;6g; †9g [4 Sep 2018]
           Family Larnacillidae Haeckel, 1887
          Count: [g†g] 4g; †9g [4 Sep 2018]
             Subfamily †Histriastrinae Dumitrica, 1989
            Count: [†g] †4g [4 Sep 2018]
               1 Genus †Amphimenium Haeckel, 1881
              Count: -
               2 Genus †Histiastrum Ehrenberg, 1847
              Count: -
               3 Genus †Stauralastrum Haeckel, 1887
              Count: -
               4 Genus †Stephanastrum Ehrenberg, 1847
              Count: -