Concise hierarchy

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

Subsequent positions

Ameridelphia (Magnorder) Szalay, 1982

Ref: M.C. McKenna & S.K. Bell, 1997: 68.

Original entries

Questionably †Adinodontinae (Subfamily) Hershkovitz, 1995, nom. dub.
Questionably †Peradectidae (Family) Crochet, 1979

Subsequent entries

†Camptomus (Genus) Marsh, 1889
Didelphidae (Family) Gray, 1821
†Gashterniidae (Family) Marshall, 1987
†Iqualadelphis (Genus) Fox, 1987
†Sparassocynidae (Family) Reig, 1958

Current position

Marsupialia (Cohort) Jameson, 1818

Ref: M.J. Benton, 2015: 443.

Alternative positions

Ameridelphia (Magnorder) Szalay, 1982	Ref: M.J. Benton, 2005: 400.
Ameridelphia (Superorder) Szalay, 1982	Ref: Z. Kielan-Jaworowska et al., 2004 (alt.): table 1.1 (p. 15). [new position]
Mammalia (Class) Linnaeus, 1758	Ref: A.L. Gardner, 1993: 15.
Marsupialia (Clade) Jameson 1818 [O'Leary, Allard, Novacek, Meng & Gatesy 2004]	Ref: É.V. Oliveira et al., 2021: fig. 6. [inferred rank]
Marsupialia (Infraclass) Jameson, 1818	Ref: D.E. Wilson & D.M. Reeder, 2011: 56.
Metatheria (Infraclass) Huxley, 1880	Ref: C.J. Burgin et al., 2020: table 2 (p. 26).

Historical positions

Marsupialia (Clade) Jameson 1818 [O'Leary, Allard, Novacek, Meng & Gatesy 2004]	Ref: É.V. Oliveira et al., 2021: fig. 6.
Metatheria (Infraclass) Huxley, 1880	Ref: C.J. Burgin et al., 2020: table 2 (p. 26).
Marsupialia (Clade) Jameson 1818 [O'Leary, Allard, Novacek, Meng & Gatesy 2004]	Ref: L.M. Carneiro et al., 2018: fig. 5. [inferred rank]
Marsupialia (Cohort) Jameson, 1818	Ref: M.J. Benton, 2015: 443.
Marsupialia (Infraclass) Jameson, 1818	Ref: D.E. Wilson & D.M. Reeder, 2011: 56.
Theria (Subclass) Parker & Haswell, 1897	Ref: A.L. Gardner, 2005: 3. [implicit]
Ameridelphia (Magnorder) Szalay, 1982	Ref: M.J. Benton, 2005: 400.
Ameridelphia (Superorder) Szalay, 1982	Ref: Z. Kielan-Jaworowska et al., 2004 (alt.): table 1.1 (p. 15).
Ameridelphia (Superorder) Szalay, 1982	Ref: Z. Kielan-Jaworowska et al., 2004: tables 1.2 (p. [17]), 12.1 (p. [443]). [new position]
Ameridelphia (Magnorder) Szalay, 1982	Ref: M.C. McKenna & S.K. Bell, 1997: 68. [new position]
Mammalia (Class) Linnaeus, 1758	Ref: A.L. Gardner, 1993: 15; 4.

Number of Subtaxa

2024	Available in Systema Naturae 2000	1f;18g;87s;65ss; †3f;21g;2s
1989-present	Systema Naturae 2000: 21 Jul 2022	[1f; †3f;21g]
2020	C.J. Burgin et al.: table 2 (p. 26)	[1f]
2015	M.J. Benton: 443	[1f]
2011	D.E. Wilson & D.M. Reeder: 56	1f
2005	A.L. Gardner	[1f;17g;87s;65ss]
1997	M.C. McKenna & S.K. Bell	[1f;14g; †1f;42g]
1993	A.L. Gardner	[1f];15g;63s