Protozoa Goldfuss, 1818 - protozoa
   Gymnomyxa (Lankester, 1878) Cavalier-Smith, 2002 see Kingdom Protozoa Goldfuss, 1818
     Rhizaria Cavalier-Smith, 2002
       Retaria Cavalier-Smith, 2002
         Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
           Acantharea Haeckel, 1881
             1 Haliommatidium Müller, 1858