Concise hierarchy

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

Current position

Boreosphenida (Clade) Luo, Cifelli & Kielan-Jaworowska 2001

Ref: C.J. Burgin et al., 2020: table 2 (p. 26). [indirect]

Alternative positions

Mammalia (Class) Linnaeus, 1758

Ref: R.C. Fox, 2015: 1139.

Historical positions

Mammalia (Class) Linnaeus, 1758	Ref: C.J. Burgin et al., 2020: table 2 (p. 26). [implicit]
Mammalia (Class) Linnaeus, 1758	Ref: C. Groves & D. Happold, 2013: 102.
Mammalia (Class) Linnaeus, 1758	Ref: D.E. Wilson & D.M. Reeder, 2011: 56.
Mammalia (Class) Linnaeus, 1758	Ref: C.P. Groves, 2005: 1.
Mammalia (Class) Linnaeus, 1758	Ref: R.L. Carroll, 1988: 627, table A-1 (p. 629).
Mammalia (Class) Linnaeus, 1758	Ref: A.S. Romer & T.S. Parsons, 1986
Mammalia (Class) Linnaeus, 1758	Ref: R.M. Schoch, 1984: 2.
Mammalia (Class) Linnaeus, 1758	Ref: A.F. DeBlase, 1982: 1016.
Mammalia (Class) Linnaeus, 1758	Ref: L. Margulis & K.V. Schwartz, 1982: 239.
Mammalia (Class) Linnaeus, 1758	Ref: T.I. Storer et al., 1979
Mammalia (Class) Linnaeus, 1758	Ref: M.C. McKenna, 1975: 40.
Mammalia (Class) Linnaeus, 1758	Ref: L.B. Halstead, 1974: 172.
Mammalia (Class) Linnaeus, 1758	Ref: G.G. Simpson, 1945

Number of Subtaxa

2024	Available in Systema Naturae 2000	26o;163f;1202g;5115s;4347ss;302v; ‡12f;52g;110s;33ss;1v; †33o;299f;4201g;1442s;65ss;1v
1989-present	Systema Naturae 2000	2ic;[21o;130f]
2020	C.J. Burgin et al.: table 2 (p. 27)	[26o;158f; ‡7f]
2013	C. Groves & D. Happold: 102	28o
2011	D.E. Wilson & D.M. Reeder: 56	2ic;[28o;155f]
1988	R.L. Carroll: 648	[19o;117f; ‡5f; †20o;196f]
1982	A.F. DeBlase: 1016	2ic;[21o;130f]
1982	L. Margulis & K.V. Schwartz	2ic
1945	G.G. Simpson:	[17o]