Concise hierarchy

(Kingdom) Animalia - (Phylum) Arthropoda

Phylogeny

Paraphyletic/Ancestral (para)

Ref: J.M. Mallatt et al., 2004: 188.

Original entries

†Ercaia (Genus) Chen et al., 2001

Ref: J.-Y. Chen et al., 2001: 2185.

Current position

Eucrustacea (Epiclass) Kingsley, 1894

Ref: D. Grimaldi & M.S. Engel, 2005: table 3.2.

Alternative positions

Crustacea (Subphylum) Brünnich, 1772	Ref: J.W. Martin & G.E. Davis, 2001: 58.
Crustacea (Superclass) Pennant, 1777	Ref: J.-Y. Chen et al., 2001: 2185.

Historical positions

Eucrustacea (Epiclass) Kingsley, 1894	Ref: D. Grimaldi & M.S. Engel, 2005: table 3.2.
Crustacea (Subphylum) Brünnich, 1772	Ref: J.W. Martin & G.E. Davis, 2001: 20-21, 58.
Crustacea (Superclass) Pennant, 1777	Ref: J.-Y. Chen et al., 2001: 2185.
Crustacea (Subphylum) Brünnich, 1772	Ref: C. Nielsen, 1995
Crustacea (Subphylum) Brünnich, 1772	Ref: R.C. Brusca & G.J. Brusca, 1990

Number of Subtaxa

1989-present	Systema Naturae 2000	22o;304f
2001	J.W. Martin & G.E. Davis	[6sc;22o;283f]