Concise hierarchy

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

Subsequent positions

†Meridiungulata (Mirorder) McKenna, 1975

Original entries

Questionably †Asmithwoodwardia (Genus) Ameghino, 1901
Questionably †Macrauchenioidea (Superfamily) Gervais, 1855
Questionably †Miguelsoria (Genus) Cifelli, 1983
Questionably †Proterotherioidea (Superfamily) Ameghino, 1887
Questionably †Protolipternidae (Family) Cifelli, 1983

Subsequent entries

†Eoauchenia (Genus) Ameghino, 1887
†Megamys (Genus) d'Orbigny & Laurillard, 1837, nom. dub.

Current position

†Meridiungulata (Grandorder) McKenna, 1975

Ref: M.J. Benton, 1997: App. (p. 402).

Alternative positions

Eutheria (Infraclass) Gill, 1872	Ref: R.L. Carroll, 1988: 647.
†Meridiungulata (Mirorder) McKenna, 1975	Ref: M.C. McKenna & S.K. Bell, 1997: 451.
†Meridiungulata (Superorder) McKenna, 1975	Ref: M.J. Benton, 2015: 444.
Protungulata (Superorder)	Ref: G.G. Simpson, 1945

Historical positions

†Meridiungulata (Superorder) McKenna, 1975	Ref: M.J. Benton, 2015: 444.
†Meridiungulata (Superorder) McKenna, 1975	Ref: M.J. Benton, 2005: 402.
†Meridiungulata (Mirorder) McKenna, 1975	Ref: M.C. McKenna & S.K. Bell, 1997: 451.
Mammalia (Class) Linnaeus, 1758	Ref: 1995
Eutheria (Infraclass) Gill, 1872	Ref: R.L. Carroll, 1988: 647.
Eutheria (Infraclass) Gill, 1872	Ref: A.S. Romer & T.S. Parsons, 1986
Eutheria (Infraclass) Gill, 1872	Ref: T.I. Storer et al., 1979
Protungulata (Superorder)	Ref: R. Altevogt et al., 1973 (1972): 699.
Protungulata (Superorder)	Ref: G.G. Simpson, 1945

Number of Subtaxa

2024	Available in Systema Naturae 2000	†5f;51g
1989-present	Systema Naturae 2000	[; †5f;50g]
1997	M.C. McKenna & S.K. Bell	[; †5f;50g]
1988	R.L. Carroll: 647	[; †4f]