[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838 Order Nassellaria Ehrenberg, 1875 see Class Nassellaria Ehrenberg, 1847 Family Cannobotryidae Haeckel, 1881 Genus Centrobotrys Petrushevskaya, 1965 †Centrobotrys gravida Moore, 1971