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 Chordata Bateson, 1885 - chordates
           Subphylum Tunicata Lamarck, 1816 - tunicates see Subphylum Urochordata Bateson, 1885
             Class Ascidiacea Blainville, 1824 - sea squirts
               Order Stolidobranchia Lahille, 1886
                 Family Pyuridae Hartmeyer, 1908
                   1 Genus Boltenia Savigny, 1816
                   2 Genus Culeolus Herdman, 1881
                   3 Genus Pyura Molina, 1782
                   4 Genus Halocynthia Verrill, 1879
                   5 Genus Herdmania Lahille, 1888
                   6 Genus Microcosmus Heller, 1877, nom. illeg.