[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Regnum Animale C. Linnaeus, 1758 - animal kingdom see Kingdom Animalia Linnaeus, 1758
     Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
       Phylum Chordata Bateson, 1885 - chordates
         Subphylum Vertebrata Cuvier, 1812 - vertebrates
           Superclass Agnatha Haeckel, 1895 see Class Agnatha Cope, 1889
             1 Class †Ostracodermi see [unranked] Pisces
             2 Class Cyclostomata Richards