Concise hierarchy

(Kingdom) Animalia - (Phylum) Chordata

Phylogeny

Crown clade

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

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

Elephas maximus Linnaeus, 1758		Ref: M.A. O'Leary et al., 2004: 494.
Ornithorynchus anatinus		Ref: M.A. O'Leary et al., 2004: 494.

Generic clade

Mammalia (Clade) Linnaeus 1758 [Rowe 1988], nom. cl. inval.

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

Current position

Mammaliaformes (Clade) Rowe 1988, nom. cl. inval.

Ref: M.A. O'Leary et al., 2013: table S4 (p. 100).

Alternative positions

Eucynodontia (Clade) Kemp 1982 [Rowe 1993]

Ref: M.J. Benton, 2005: 290. [inferred rank]

Historical positions

Mammaliaformes (Clade) Rowe 1988, nom. cl. inval.	Src: M.A. O'Leary et al., 2013: table S4 (p. 100).
Synapsida (Clade) Osborn 1903 [Gauthier et al. 1989], nom. cl. inval.	Src: J.S. Nelson, 2006: 467. [rough position]
Tetrapoda (Clade) Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988], nom. cl. inval.	Src: N. Iwabe et al., 2005: fig. 1c. [indirect]
Mammaliaformes (Clade) Rowe 1988, nom. cl. inval.	Src: M.A. O'Leary et al., 2004: fig. 28.2.
Mammaliaformes (Clade) Rowe 1988, nom. cl. inval.	Src: T. Rowe, 1988: 251-255, figs. 3, 4. [new position]

Number of Subtaxa

2025

Available in Systema Naturae 2000

†1g