[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838 Order Nassellaria Ehrenberg, 1875 see Class Nassellaria Ehrenberg, 1847 Family †Amphipyndacidae Riedel, 1967 Genus †Amphipternis Foreman, 1973 †Amphipternis clava (Ehrenberg, 1873)