Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Pilosa Flower, 1883 - sloths
       1 Suborder Folivora Delsuc, Catzeflis, Stanhope & Douzery, 2001
       2 Suborder Vermilingua Gray, 1869 - anteaters