[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838
   Order Spumellaria Ehrenberg, 1875 see Class Spumellaria Ehrenberg, 1875
     Family Spongodiscidae Haeckel, 1862
       Genus Spongodiscus Ehrenberg, 1854
         01 †Spongodiscus ambus Sanfilippo, 1974
         02 Spongodiscus biconcavus Haeckel, 1887
         03 †Spongodiscus craticulatus (Stöhr, 1880)
         04 †Spongodiscus cruciferus (Clark & Campbell, 1942)
         05 †Spongodiscus gigas Campbell & Clark, 1944
         06 †Spongodiscus klingi Caulet, 1986
         07 †Spongodiscus osculosus (Dreyer, 1889) see Spongopyle osculosa Dreyer, 1889
         08 †Spongodiscus phrix Sanfilippo & Riedel, 1973
         09 †Spongodiscus pulcher Clark & Campbell, 1945
         10 †Spongodiscus quartus (Borisenko, 1958)
         11 Spongodiscus resurgens Ehrenberg, 1854
         12 †Spongodiscus rhabdostylus (Ehrenberg, 1873)
         13 Spongodiscus setosus (Dreyer, 1889)