[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838 Order Spumellaria Ehrenberg, 1875 see Class Spumellaria Ehrenberg, 1875 Family Actinommidae Haeckel, 1862 Genus †Thecosphaerella Haeckel, 1887 †Thecosphaerella ptomatus Sanfilippo & Riedel, 1973