[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 †Astrophacus inca (Clark & Campbell, 1942)