(Epsilonproteobacteria) (Epsilonproteobacteria) is a biological class of the kingdom Bacteria and phylum Proteobacteria.
Campylobacterales
Nautiliales
Alphaproteobacteria
Betaproteobacteria
Deltaproteobacteria
Epsilonproteobacteria
Gammaproteobacteria
Zetaproteobacteria