[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838 Order Nassellaria Ehrenberg, 1875 see Class Nassellaria Ehrenberg, 1847 Family Cannobotryidae Haeckel, 1881 Genus †Botryometra Petrushevskaya, 1975 †Botryometra spongiosa Petrushevskaya, 1975