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
Parvorder Megatheria McKenna & Bell, 1997
see Infraorder Megatheria McKenna & Bell, 1997
Family ‡Nothrotheriidae Ameghino, 1920
see Tribe Nothrotheriini Ameghino, 1920