[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838
   Order Nassellaria Ehrenberg, 1875 see Class Nassellaria Ehrenberg, 1847
     Family Theoperidae Haeckel, 1881
       Genus †Lithochytris Ehrenberg, 1847
         1 †Lithochytris archaea Riedel & Sanfilippo, 1970
         2 †Lithochytris triconiscus (Haeckel, 1887)
         3 †Lithochytris ventricosa (Ehrenberg, 1873)
         4 †Lithochytris vespertilio Ehrenberg, 1873