Bacteria  >  Pseudomonadati  >  Aquificota  >  Aquificia

Genus	Species
Aquifex	26
Balnearium	4
Desulfurobacterium	18
Hydrogenivirga	9
Hydrogenobacter	24
Hydrogenobaculum	14
Hydrogenothermus	4
Persephonella	125
Phorcysia	1
Sulfurihydrogenibium	15
Thermocrinis	10
Thermovibrio	10
Venenivibrio	3