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 Cephalochordata Owen, 1846 - lancelets
             Family Asymmetrontidae see Family Epigonichthyidae
               1 Genus Asymmetron Andrews, 1893 see Genus Epigonichthys Peters, 1876
               2 Genus Epigonichthys Peters, 1876