[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838
   Order Nassellaria Ehrenberg, 1875 see Class Nassellaria Ehrenberg, 1847
     Family Theoperidae Haeckel, 1881
       Genus Lithostrobus Bütschli, 1881
         1 Lithostrobus cuspidatus Haeckel, 1887
         2 Lithostrobus hexagonalis Haeckel, 1887
         3 †Lithostrobus microporus (Ehrenberg, 1875)
         4 †Lithostrobus undulatus (Popofsky, 1913)