[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838
   Order Spumellaria Ehrenberg, 1875 see Class Spumellaria Ehrenberg, 1875
     1 Family Actinommidae Haeckel, 1862
     2 Family Coccodiscidae Haeckel, 1862
     3 Family Heliodiscidae Haeckel, 1881
     4 Family Litheliidae Haeckel, 1862
     5 Family †Orosphaeridae Haeckel, 1887
     6 Family Pyloniidae Haeckel, 1881
     7 Family Sphaerozoidae Haeckel, 1862
     8 Family Spongodiscidae Haeckel, 1862
     9 Family Tholoniidae Haeckel, 1887