[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838
   Order Nassellaria Ehrenberg, 1875 see Class Nassellaria Ehrenberg, 1847
     Family Plagiacanthidae Hertwig, 1879
       Genus Cladoscenium Haeckel, 1881
         1 Cladoscenium limbatum Jørgensen, 1905
         2 Cladoscenium tricolpium (Haeckel, 1887)