Concise hierarchy

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

Phylogeny

Crown clade

Ref: M.A. O'Leary et al., 2004: 494 ("crown clade").

Defined by the most recent common ancestor (and all its descendants) of

Didelphis virginiana Kerr, 1792		Ref: M.A. O'Leary et al., 2004: 494.
Elephas maximus Linnaeus, 1758		Ref: M.A. O'Leary et al., 2004: 494.

Generic clade

Theria (Clade) Parker & Haswell 1897 [McKenna 1975]

Ref: M.A. O'Leary et al., 2004: 494.

Current position

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

Ref: M.J. Benton, 2015: 443. [inferred rank] [implicit]

Alternative positions

Mammalia (Clade) Linnaeus 1758 [Rowe 2020]	Ref: É.V. Oliveira et al., 2021: fig. 6.
Mammalia (Clade) Linnaeus 1758 [Rowe 1988], nom. cl. inval.	Ref: M.A. O'Leary et al., 2004: fig. 28.2.
Theriiformes (Clade) Rowe 1988	Ref: T. Rowe, 1988: 251.
Theriimorpha (Clade) Rowe 1993	Ref: M.A. O'Leary et al., 2013: table S4 (p. 100).

Historical positions

Mammalia (Clade) Linnaeus 1758 [Rowe 2020]	Src: É.V. Oliveira et al., 2021: fig. 6.
Mammalia (Clade) Linnaeus 1758 [Rowe 2020]	Src: K. de Queiroz et al., 2020: x.
Theriimorpha (Clade) Rowe 1993	Src: M.A. O'Leary et al., 2013: table S4 (p. 100).
Mammalia (Clade) Linnaeus 1758 [Rowe 1988], nom. cl. inval.	Src: M.A. O'Leary et al., 2004: fig. 28.2.
Theriiformes (Clade) Rowe 1988	Src: T. Rowe, 1988: 251, figs. 3, 4.

Number of Subtaxa

1989-present

Systema Naturae 2000

[26o;135f; ‡1o;10f;52g; †30o;282f;4280g]