[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838 Order Spumellaria Ehrenberg, 1875 see Class Spumellaria Ehrenberg, 1875 Family Litheliidae Haeckel, 1862 Genus Lithelius Haeckel, 1860 †Lithelius foremanae Sanfilippo, 1973