(Nitrosomonadales) (Nitrosomonadales) is a biological order of the phylum Proteobacteria and class Betaproteobacteria.
Gallionellaceae
Nitrosomonadaceae
Spirillaceae
Burkholderiales
Hydrogenophilales
Methylophilales
Neisseriales
Nitrosomonadales
Procabacteriales
Rhodocyclales