Class Actinopoda Calkins, 1902 see Parvkingdom Actinopoda Calkins, 1902
Count: 4o;45f;59g; †3o;87f;170g
   Subclass Radiolaria Müller, 1858 see Phylum Actinopoda Calkins, 1902
  Count: 4o;45f;59g; †3o;87f;170g
     Superorder Polycystina Ehrenberg, 1838 see Class Polycystinea Ehrenberg, 1838
    Count: [f†f] 4o;45f;59g; †3o;87f;170g
       Order Spumellaria Ehrenberg, 1875 see Class Spumellaria Ehrenberg, 1875
      Count: [f†f] 15f;59g; †23f;110g
         Superfamily Pyloniacea Haeckel, 1881 see Superfamily Pylonioidea Haeckel, 1881
        Count: [f†f] 4f;3g; †11f;55g
           Subsuperfamily Dactyliosphaerilae Squinabol, 1904 see Superfamily Dactyliosphaeroidea Squinabol, 1904
          Count: [†g] †7f;27g [17 Aug 2018]
             Family †Hagiastridae Riedel, 1971
            Count: [†g] †15g [17 Aug 2018]
               Genus †Tetratrabs Baumgartner, 1980
              Count: -