Concise hierarchy

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

Subsequent positions

Australosphenida (Infraclass) Luo, Cifelli & Kielan-Jaworowska, 2001

Ref: Z.-X. Luo et al., 2001: 56.

Current position

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

Ref: A.O. Averianov & A.V. Lopatin, 2011: 34. [implicit]

Alternative positions

Australosphenida (Legion) Luo, Cifelli & Kielan-Jaworowska, 2001	Ref: A.O. Averianov & A.V. Lopatin, 2011: 34.
Australosphenida (Superdivision) Luo, Cifelli & Kielan-Jaworowska, 2001	Ref: M.J. Benton, 2005: box 10.3. [inferred rank]
Australosphenida (Subclass) Luo, Cifelli & Kielan-Jaworowska, 2001	Ref: K.D. Rose, 2006: table 1.2 (p. [9]).
Placentalia (Infraclass) Owen, 1837	Ref: T.H. Rich & P. Vickers-Rich, 2004: 40.

Historical positions

Australosphenida (Legion) Luo, Cifelli & Kielan-Jaworowska, 2001	Ref: A.O. Averianov & A.V. Lopatin, 2011: 34.
Australosphenida (Subclass) Luo, Cifelli & Kielan-Jaworowska, 2001	Ref: K.D. Rose, 2006: tables 1.2 (p. [9]), 4.1.
Australosphenida (Superdivision) Luo, Cifelli & Kielan-Jaworowska, 2001	Ref: M.J. Benton, 2005: box 10.3.
Australosphenida (Subclass) Luo, Cifelli & Kielan-Jaworowska, 2001	Ref: Z. Kielan-Jaworowska et al., 2004 (alt.): table 1.1 (p. 14).
Australosphenida (Subclass) Luo, Cifelli & Kielan-Jaworowska, 2001	Ref: Z. Kielan-Jaworowska et al., 2004: tables 1.2 (p. [17]), 6.1 (p. 206). [new position]

Number of Subtaxa

2025	Available in Systema Naturae 2000	†1f;2g;2s
1989-present	Systema Naturae 2000: 12 Mar 2022	[; †1f;2g;2s]
2011	A.O. Averianov & A.V. Lopatin: fig.	[; †1f]
2004	Z. Kielan-Jaworowska et al.: table 6.1 (p. 206)	[; †1f;2g;2s]