[Kingdom] Animalia Linnaeus, 1758 - animals
Status: extant
   Grade Enterozoa
  Status: extant
     Grade Cœlomata
    Status: extant
       Phylum Vertebrata Lamarck, 1801 see Infraphylum Vertebrata Lamarck, 1801
      Status: extant
         Branch Craniata Linnaeus, 1758
        Status: extant
           Grade Gnathostoma
          Status: extant
             Subgrade Heterodactyla branchiata
            Status: extant
               Class Pisces Linnaeus, 1758 see Superclass Pisces Linnaeus, 1758
              Status: extant
                 Subclass Teleostei Müller, 1845 see Division Teleostei Müller, 1845
                Status: extant
                   Branch Physostomi
                  Status: extant
                     1 Order Abdominales Linnaeus, 1758
                    Status: extant
                     2 Order Apodes Linnaeus, 1758 see Order Anguilliformes Berg, 1943
                    Status: extant