Concise hierarchy

(Kingdom) Pseudomonadati - (Phylum) Pseudomonadota - (Class) Alphaproteobacteria - (Order) Hyphomicrobiales - (Family) Nitrobacteraceae

Subsequent positions

Pirellulae (Phylum) Margulis and Schwartz 1998 nom. ined.

Ref: L. Margulis & K.V. Schwartz, 1998: 94. [assumed]

Current position

Nitrobacteraceae (Family) corrig. Buchanan 1917 (Approved Lists 1980)

Ref: LPSN, 2020-present: [19 Apr 2026]; LPSN[19 Apr 2026].

Alternative positions

Bradyrhizobiaceae (Family) Garrity et al. 2006	Ref: G.M. Garrity et al., 2007: 103.
Bradyrhizobiaceae (Family) "Garrity and Holt 2001" nom. nud.	Ref: G.M. Garrity et al., 2001b: 8.
Planctomyces ([unranked]) Gimesi, 1924	Ref: J.T. Staley, 1982: 29.

Historical positions

Bradyrhizobiaceae (Family) Garrity et al. 2006	Ref: J.P. Euzéby, 2016: [10 Sep 2017]. [available name]
Bradyrhizobiaceae (Family) Garrity et al. 2006	Ref: G.M. Garrity et al., 2007: 103.
Bradyrhizobiaceae (Family) "Garrity and Holt 2001" nom. nud.	Ref: G.M. Garrity et al., 2001b: 8.
Bradyrhizobiaceae (Family) "Garrity and Holt 2001" nom. nud.	Ref: G.M. Garrity & J.G. Holt, 2001a: 158.
Pirellulae (Phylum) Margulis and Schwartz 1998 nom. ined.	Ref: L. Margulis & K.V. Schwartz, 1998: 94. [rough position]
Planctomyces ([unranked]) Gimesi, 1924	Ref: J.T. Staley, 1982: 29.

Number of Subtaxa

2026	Available in Systema Naturae 2000	3s
1989-present	Systema Naturae 2000: 7 Nov 2014	[3s]
2007	G.M. Garrity et al.	[4s]
2007	G.M. Garrity et al.	[4s]