[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838
   Order Nassellaria Ehrenberg, 1875 see Class Nassellaria Ehrenberg, 1847
     Family Theoperidae Haeckel, 1881
       Genus †Lychnocanium Ehrenberg, 1847
         1 †Lychnocanium carinatum Ehrenberg, 1873
         2 †Lychnocanium conicum Clark, 1942
         3 †Lychnocanium hirundo Ehrenberg, 1875
         4 †Lychnocanium neptunei O'Connor, 1997