[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838 Order Nassellaria Ehrenberg, 1875 see Class Nassellaria Ehrenberg, 1847 Family Theoperidae Haeckel, 1881 Genus †Diplocyclas Haeckel, 1881 †Diplocyclas pseudobicorona Nishimura, 1992 1 †Diplocyclas pseudobicorona pseudobicorona Nishimura, 1992 2 †Diplocyclas pseudobicorona teres Nishimura, 1992