Class [Mammalia] Linnaeus, 1758 - mammals
   Order Xenarthra Cope, 1889 - xenarthrans see Magnorder Xenarthra Cope, 1889
     Suborder Pilosa Flower, 1883 - sloths see Order Pilosa Flower, 1883
       Infraorder Phyllophaga Owen, 1842 see Suborder Folivora Delsuc, Catzeflis, Stanhope & Douzery, 2001
         1 Genus †Pseudoglyptodon Engelmann, 1987
         2 Family †Entelopidae Ameghino, 1889
         3 Family Bradypodidae Batsch, 1788 - three-toed tree sloths
         4.1 Parvorder †Mylodonta McKenna & Bell, 1997 see Infraorder Mylodonta McKenna & Bell, 1997
         4.2 Parvorder Megatheria McKenna & Bell, 1997 see Infraorder Megatheria McKenna & Bell, 1997