[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838
   Order Spumellaria Ehrenberg, 1875 see Class Spumellaria Ehrenberg, 1875
     Family Spongodiscidae Haeckel, 1862
       01 Genus †Amphicraspedum Haeckel, 1881
       02 Genus Amphirhopalum Haeckel, 1881
       03 Genus †Amphymenium Haeckel, 1881
       04 Genus Circodiscus Kozlova, 1972
       05 Genus †Coccolarcus Haeckel, 1887
       06 Genus Dictyocoryne Ehrenberg, 1860
       07 Genus †Euchitonia Ehrenberg, 1860
       08 Genus †Ommatodiscus Stöhr, 1880
       09 Genus Ommatogramma Ehrenberg, 1860
       10 Genus †Perichlamydium Ehrenberg, 1847
       11 Genus †Plectodiscus Kozlova, 1972, nom. illeg.
       12 Genus †Porodiscus Haeckel, 1881
       13 Genus †Rhopalastrum Ehrenberg, 1847
       14 Genus †Schizodiscus Dogiel, 1952, nom. illeg.
       15 Genus Spongaster Ehrenberg, 1860
       16 Genus †Spongasteriscus Haeckel, 1862
       17 Genus †Spongobrachium Haeckel, 1881
       18 Genus Spongodiscus Ehrenberg, 1854
       19 Genus Spongopyle Dreyer, 1889
       20 Genus Spongotrochus Haeckel, 1860
       21 Genus Spongurus Haeckel, 1860
       22 Genus Stylochlamydium Haeckel, 1881
       23 Genus Stylodictya Ehrenberg, 1847
       24 Genus Stylospongia Haeckel, 1862
       25 Genus Stylotrochus Haeckel, 1862
       26 Genus †Tessarastrum Haeckel, 1887
       27 Genus †Tholodiscus Kozlova, 1972
       28 Genus †Trigonastrum Haeckel, 1887