[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838
   Order Nassellaria Ehrenberg, 1875 see Class Nassellaria Ehrenberg, 1847
     Family Plagiacanthidae Hertwig, 1879
       Genus Neosemantis Popofsky, 1913
         1 †Neosemantis bjoerklundi Goll, 1979
         2 Neosemantis cladophora Goll, 1979
         3 †Neosemantis distephanus Popofsky, 1913
         4 †Neosemantis hofferti Goll, 1980