Vertebrata Cuvier, 1812 - vertebrates
   Gnathostomata
     Teleostomi
       Tetrapoda Goodrich, 1930
         Amniota Haeckel, 1866 - amniotes
           Class Mammalia Linnaeus, 1758 - mammals
             Subclass Theria Parker & Haswell, 1897
               Theria of Metatherian-Eutherian grade
                 Infraclass Eutheria Gill, 1872
                   Order Proboscidea Owen, 1859 - elephants
                     ?Suborder †Moeritherioidea see Family Moeritheriidae Andrews, 1906
                       1 Family †Anthracobunidae Wells & Gingerich, 1983
                       2 Family †Moeritheriidae Andrews, 1906