[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 Gnathostomata Gegenbaur, 1874 - jawed vertebrates
             1 Class †Placodermi McCoy, 1848
             2 Class Chondrichthyes Huxley, 1880 - cartilaginous fishes
             3 Class †Acanthodii Owen, 1846
             4 Class Osteichthyes Huxley, 1880 - bony fishes see [unranked] Euteleostomi
             5 Class Amphibia Linnaeus, 1758 - amphibians see Class Amphibia Gray, 1825
             6 Class Reptilia Linnaeus, 1758 - reptiles
             7 Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
             8 Class Mammalia Linnaeus, 1758 - mammals