[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838 Order Nassellaria Ehrenberg, 1875 see Class Nassellaria Ehrenberg, 1847 Family Trissocyclidae Haeckel, 1881 see Family Acanthodesmiidae Haeckel, 1862 Genus †Psychospyris Riedel & Sanfilippo, 1971 †Psychospyris parva Riedel & Sanfilippo, 1971