Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Coelenterata Hatschek, 1888 see Infrakingdom Coelenterata Leuckart, 1847
         Phylum Cnidaria Hatschek, 1888 - cnidarians
           Class Anthozoa Ehrenberg, 1831
             Subclass †Rugosa Milne-Edwards & Haime, 1850 see Order Rugosa Milne-Edwards & Haime, 1850
               1 Genus †Streptelasma Hall, 1847
               2 Genus †Calceola Lamarck, 1799
               3 Genus †Cyathophyllum Goldfuss, 1826
               4 Genus †Lithostrotion Fleming, 1828
               5 Genus †Dalmanophyllum Lang & Smith, 1939