living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Count: 4k;54p;156c;911o;7123f;17,575g;4762s;36ss;8v;19; ‡1f;6g;7s;1ss; †1c;10o;10f;19g;1s
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
  Count: [c] 2k;51p;154c;900o;7001f;17,209g;4300s;33ss;8v; ‡1f;6g;7s;1ss; †1c;10o;10f;19g;1s
     Kingdom Animalia Linnaeus, 1758 - animals
    Count: [c] 38p;101c;595o;5766f;13,419g;3233s;32ss;3v; ‡1f;6g;7s;1ss; †1c;9o;10f;16g;1s
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
      Count: [c] 29p;70c;458o;5094f;11,476g;2933s;31ss;3v; ‡1f;6g;7s;1ss; †1c;8o;10f;11g;1s
         Phylum Brachiopoda Duméril, 1806 - brachiopods
        Count: [g] 2c;4o;21f;81g;31s;4ss; †2o
           Class Inarticulata (Huxley, 1869)
          Count: [g] 2o;3f;9g;2s
             Order Acrotretida Kuhn, 1949
            Count: 2f;7g;2s
               Suborder Acrotretidina Kuhn, 1949 see Order Lingulida Waagen, 1885
              Count: [g] 1f;4g;1s
                 Superfamily Discinacea Gray, 1840 see Superfamily Discinoidea Gray, 1840
                Count: [g] 1f;4g;1s
                   Family Discinidae Gray, 1840
                  Count: 4g;1s
                     Genus Pelagodiscus Dall, 1908
                    Count: [*] 1s
                       Pelagodiscus atlanticus (King, 1868)
                      Count: -