Concise hierarchy

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

Phylogeny

Crown clade		Ref: P.J. Waddell et al., 1999a: 4 ("crown group").
Reference phylogeny [PhyloCode]		Ref: P.J. Waddell et al., 1999a: cover illustration.

First representative

†Leptacodon proserpinae Van Valen, 1978		Ref: M.A. O'Leary et al., 2013: table S2 (p. 86).
†Protungulatum donnae Sloan & Van Valen, 1965		Ref: M.A. O'Leary et al., 2013: table S2 (p. 86).

Subsequent entries

Pan-Euungulata (Clade) O'Leary, Bloch, Flynn, Gaudin, Giallombardo, Giannini, Goldberg, Kraatz, Luo, Meng, Ni, Novacek, Perini, Randall, Rougier, Sargis, Silcox, Simmons, Spaulding, Velazco, Weksler, Wible & Cirranello 2013

Ref: M.A. O'Leary et al., 2013: table S4 (p. 103). [implicit]

Current position

Boreoeutheria (Clade) Springer & de Jong 2001

Ref: R.J. Asher, 2018: table 7.1 (p. 306).

Historical positions

Boreoeutheria (Clade) Springer & de Jong 2001	Ref: M.A. O'Leary et al., 2013: table S4 (p. 102). [implicit]
Boreoeutheria (Clade) Springer & de Jong 2001	Ref: H. Nishihara et al., 2006: 9929, 9933, fig. 2.

Number of Subtaxa

1989-present	Systema Naturae 2000	[6o]
2006	H. Nishihara et al.: 9929	[6o]