[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 Ceratospyris Ehrenberg, 1847
         1 †Ceratospyris articulata Ehrenberg, 1873
         2 Ceratospyris borealis Bailey, 1856
         3 †Ceratospyris clavata Bütschli, 1881
         4 †Ceratospyris echinus Ehrenberg, 1873
         5 Ceratospyris hyperborea Jørgensen, 1905