[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838
   Order Nassellaria Ehrenberg, 1875 see Class Nassellaria Ehrenberg, 1847
     Family Theoperidae Haeckel, 1881
       Genus Eucyrtidium Ehrenberg, 1847
         Eucyrtidium teuscheri Haeckel, 1887
           1 †Eucyrtidium teuscheri orthoporus Caulet, 1985
           2 †Eucyrtidium teuscheri teuscheri Haeckel, 1887