Concise hierarchy

(Domain) Bacteria - (Phylum) Gammaproteobacteria - (Class) Gammaproteobacteria

Current position

Gammaproteobacteria (Class) Garrity et al. 2005

Ref: J.P. Euzéby, 2016: [1 Sep 2017].

Alternative positions

Gammaproteobacteria (Class) nom. inval.	Ref: G.M. Garrity et al., 2001b: 12.
Schizomycetes (Class) Nägeli 1857 (Approved Lists 1980)	Ref: 1976: 184.
Scotobacteria (Class) Gibbons and Murray 1978 (Approved Lists 1980)	Ref: N.R. Krieg & J.G. Holt, 1984-1989

Historical positions

Gammaproteobacteria (Class) Garrity et al. 2005	Ref: J.P. Euzéby, 2016: [1 Sep 2017].
Gammaproteobacteria (Class) Garrity et al. 2005	Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 6).
Gammaproteobacteria (Class) Garrity et al. 2005	Ref: G.M. Garrity et al., 2007: 181.
Gammaproteobacteria (Class) nom. inval.	Ref: G.M. Garrity et al., 2001b: 12.
Scotobacteria (Class) Gibbons and Murray 1978 (Approved Lists 1980)	Ref: N.R. Krieg & J.G. Holt, 1984-1989
Schizomycetes (Class) Nägeli 1857 (Approved Lists 1980)	Ref: 1976: 184.

Number of Subtaxa

2025	Available in Systema Naturae 2000	2f;17g;229s;5ss
1989-present	Systema Naturae 2000	2f;16g;219s;7ss
2016	J.P. Euzéby: [13 Sep 2017]	[2f;22g]
2007	G.M. Garrity et al.	[2f;14g;193s;6ss]
2001b	G.M. Garrity et al.: 12	[2f;18g]
2000		2f18g