Concise hierarchy

(Kingdom) Animalia - (Phylum) Arthropoda

Current position

Oligostraca ([unranked])

Ref: E.J. van Nieukerken, 2010: 177.

Alternative positions

Crustacea (Subphylum) Brünnich, 1772	Ref: J.W. Martin & G.E. Davis, 2001: 64.
Crustacea (Superclass) Pennant, 1777	Ref: R.S. Boardman et al., 1987
Crustacea ([unranked]) Brünnich, 1772	Ref: J.J. Sepkoski Jr., 2002: 202.
Eucrustacea (Epiclass) Kingsley, 1894	Ref: D. Grimaldi & M.S. Engel, 2005: table 3.2.
Thecostracomorpha ([unranked])	Ref: E.E. Ruppert et al., 2004: fig. 19.89.

Historical positions

Oligostraca ([unranked])	Ref: E.J. van Nieukerken, 2010: 177.
Eucrustacea (Epiclass) Kingsley, 1894	Ref: D. Grimaldi & M.S. Engel, 2005: table 3.2.
Thecostracomorpha ([unranked])	Ref: E.E. Ruppert et al., 2004: fig. 19.89.
Crustacea ([unranked]) Brünnich, 1772	Ref: J.J. Sepkoski Jr., 2002: 202 (TREATISE Part Q, [1961]).
Crustacea (Subphylum) Brünnich, 1772	Ref: J.W. Martin & G.E. Davis, 2001: 28-30, 64.
Crustacea (Subphylum) Brünnich, 1772	Ref: 1995
Arthropoda (Phylum) Siebold, 1848	Ref: S. Bengtson, 1992: table 23.5 (p. 1022). [indirect]
Crustacea (Superclass) Pennant, 1777	Ref: R.S. Boardman et al., 1987
Crustacea (Subphylum) Brünnich, 1772	Ref: A.C. Cohen, 1982: 181.

Number of Subtaxa

2024	Available in Systema Naturae 2000	4o;58f;744g;473s;6ss;3v; ‡2s; †2o;6f;71g;16s
1989-present	Systema Naturae 2000	4o;2000s; †1900g
2001	J.W. Martin & G.E. Davis	[2sc;4o;43f]
1987	R.S. Boardman et al.	3o; †3o1,900g
1982	A.C. Cohen	3sc;[6o;49f]