Bacteria  >  Pseudomonadati  >  Campylobacterota  >  Epsilonproteobacteria

Family	Genus	Species
Arcobacteraceae	7	220
Campylobacteraceae	2	1465
Helicobacteraceae	3	317
Hydrogenimonadaceae	1	8
Nautiliaceae	3	32
Nitratiruptoraceae	2	17
Sulfurimonadaceae	3	306
Sulfurospirillaceae	1	72
Sulfurovaceae	2	64