[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838
   Order Spumellaria Ehrenberg, 1875 see Class Spumellaria Ehrenberg, 1875
     Family Heliodiscidae Haeckel, 1881
       Genus †Astrophacus Haeckel, 1881
         1 †Astrophacus inca (Clark & Campbell, 1942)
         2 †Astrophacus linckiaformis (Clark & Campbell)