Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Chordata Bateson, 1885 - chordates
     1 Subphylum Urochordata Bateson, 1885 - tunicates
     2 Subphylum Cephalochordata Owen, 1846 - lancelets
     3 Subphylum Vertebrata Cuvier, 1812 - vertebrates