[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 †Acrospyris Haeckel, 1881 †Acrospyris lingi Shilov, 1995