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 Brachiopoda Duméril, 1806 - brachiopods
           Class Articulata Huxley, 1869
             Order Terebratulida Waagen, 1883
               Suborder Terebratulidina Waagen, 1883
                 Superfamily Cancellothyridacea see Superfamily Cancellothyridoidea Thomson, 1926
                   Family Chlidonophoridae Muir-Wood, 1959
                     1 Genus Agulhasia King, 1871
                     2 Genus Bathynanus Foster, 1974
                     3 Genus Chlidonophora Dall, 1903
                     4 Genus Eucalathis Fischer & Oehlert, 1890
                     5 Genus Notozyga Cooper, 1977