GammaproteobacteriaEnterobacteralesPasteurellalesPseudomonadalesLysobacteralesLegionellalesMoraxellalesThiotrichalesVibrionalesAlteromonadalesOceanospirillalesAeromonadalesOrbalesGammaproteobacteria incertae sedisMethylococcalesCardiobacterialesThiohalorhabdalesChromatialesCellvibrionalesWoeseialesImmundisolibacteralesNevskialesThiohalospiralesunclassified GammaproteobacteriaKangiellalesSalinisphaeralesAcidiferrobacteralesThiohalobacteralesThiohalomonadalesSteroidobacteralesArenicellales