Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Pilosa Flower, 1883 - sloths
       Suborder Vermilingua Gray, 1869 - anteaters
         Family Myrmecophagidae Gray, 1825 - anteaters
           Genus Tamandua Gray, 1825 - lesser anteaters
             Tamandua mexicana (Saussure, 1860) - northern tamandua
               Tamandua mexicana opistholeuca Gray, 1873