living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Echinodermata Bruguière, 1789 - echinoderms
           Subphylum Crinozoa Matsumoto, 1929 see Infraphylum Crinozoa Matsumoto, 1929
             Class Crinoidea Miller, 1821 - sea lilies and feather stars
               Subclass Articulata Miller, 1821
                 Order Comatulida Clark, 1908
                   Superfamily Antedonacea Norman, 1865
                     Family Antedonidae Norman, 1865
                       1 Genus Promachocrinus Carpenter, 1879
                       2 Genus Antedon Fréminville, 1811
                       3 Genus Isometra Clark, 1908
                       4 Genus Phrixometra Clark, 1921
                       5 Genus Heliometra Clark, 1907
                       6 Genus Florometra Clark, 1915
                       7 Genus Nanometra Clark, 1907
                       8 Genus Adelometra Clark, 1907