[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Cnidaria Hatschek, 1888 - cnidarians
     Anthozoa Ehrenberg, 1831
       Hexacorallia Haeckel, 1866 - sea anemones and true corals see Subclass Zoantharia de Blainville, 1830
         Order Actiniaria - sea anemones
           Family Hormathiidae Carlgren, 1932
             01 Genus Actinauge Verrill, 1883
             02 Genus Adamsia E. Forbes, 1840
             03 Genus Allantactis Danielssen, 1890
             04 Genus Amphianthus Hertwig, 1882
             05 Genus Calliactis Verrill, 1869
             06 Genus Cataphellia Stephenson, 1929
             07 Genus Chondrophellia Carlgren, 1925
             08 Genus Hormathia Gosse, 1859
             09 Genus Monactis Riemann-Zurneck, 1986
             10 Genus Paracalliactis Carlgren, 1928
             11 Genus Paractinia Andres, 1883
             12 Genus Paraphellia Haddon, 1889
             13 Genus Phelliactis Simon, 1892
             14 Genus Stephanauge Verrill, 1899