(Gammaproteobacteria) (Gammaproteobacteria) is a biological class of the kingdom Bacteria and phylum Proteobacteria.
Acidithiobacillales
Aeromonadales
Alteromonadales
Cardiobacteriales
Chromatiales
Enterobacteriales
Legionellales
Methylococcales
Oceanospirillales
Pasteurellales
Pseudomonadales
Salinisphaerales
Thiotrichales
Vibrionales
Xanthomonadales
Alphaproteobacteria
Betaproteobacteria
Deltaproteobacteria
Epsilonproteobacteria
Gammaproteobacteria
Zetaproteobacteria