Kingdom [Animalia] Linnaeus, 1758 - animals
  
 Subkingdom Metazoa Haeckel, 1874
 see Kingdom Animalia Linnaeus, 1758
    
 Division Eumetazoa Butschli, 1910
 see Subkingdom Eumetazoa Butschli, 1910
      
 Subdivision Bilateralia
        
 Phylum Chordata Bateson, 1885 - chordates
          
 Subphylum Vertebrata Cuvier, 1812 - vertebrates
 see Infraphylum Vertebrata Lamarck, 1801
            
 Class Mammalia Linnaeus, 1758 - mammals
              
 Subclass Eutheria Gill, 1872
 see Infraclass Eutheria Gill, 1872
                
 Superorder Paenungulata Simpson, 1945
 see Grandorder Paenungulata Simpson, 1945
                  
 Order Proboscidea Owen, 1859 - elephants
                    
 Superfamily †Moeritherioidea
                      
 Family †Mastodontidae Gray, 1821
                        
 1 Genus †Palaeomastodon Andrews, 1901
                        
 2 Genus †Mastodon Rafinesque, 1814
 see Genus Mammut Blumenbach, 1799
                        
 3 Genus †Stegomastodon Pohlig, 1912
                        
 4 Genus †Platybelodon Borissiak, 1928
                        
 5 Genus †Amebelodon Barbour, 1927
                        
 6 Genus †Gnathabelodon Barbour & Sternberg, 1935
                        
 7 Genus †Cuvieronius Osborn, 1923