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
             1 Order Rhynchonellida Kuhn, 1949
             2 Order Terebratulida Waagen, 1883
             3 ?Suborder Thecideidina Elliot, 1958 see Order Thecideida Pajaud, 1970
             4 Order †Strophomenida Opik, 1934
             5 Order †Spiriferida Waagen, 1883