Concise hierarchy

(Kingdom) Animalia - (Phylum) Chordata - (Class) Mammalia - (Order) Pilosa

Subsequent positions

Megatherioidea (Superfamily) Gray, 1821

Original entries

Questionably Megatheriinae (Subfamily) Gray, 1821

Subsequent entries

†Schismotheriinae (Subfamily) Mercerat, 1891

Ref: M.C. McKenna & S.K. Bell, 1997: 98.

Current position

Megatherioidea (Superfamily) Gray, 1821

Ref: M.C. McKenna & S.K. Bell, 1997: 96.

Alternative positions

Megalonychoidea (Superfamily)	Ref: R.L. Carroll, 1988: 647.
Megatheria (Parvorder) McKenna & Bell, 1997	Ref: K.D. Rose et al., 2005: table 8.1.
Pilosa (Order) Flower, 1883	Ref: M.J. Benton, 2015: 443.
Xenarthra (Order) Cope, 1889

Historical positions

Pilosa (Order) Flower, 1883	Ref: M.J. Benton, 2015: 443.
Pilosa (Order) Flower, 1883	Ref: M.J. Benton, 2005: 401.
Megatheria (Parvorder) McKenna & Bell, 1997	Ref: K.D. Rose et al., 2005: table 8.1.
Megatherioidea (Superfamily) Gray, 1821	Ref: M.C. McKenna & S.K. Bell, 1997: 96.
Edentata (Order) Vicq-d'Azyr, 1792	Ref: 1995
Megalonychoidea (Superfamily)	Ref: R.L. Carroll, 1988: 647.

Number of Subtaxa

2025	Available in Systema Naturae 2000	‡2g‡‡28g;2s;1ss
1989-present	Systema Naturae 2000	[; ‡2g; †28g]
1997	M.C. McKenna & S.K. Bell	[; ‡2g; †28g]