| Aquificae |
| Clasificación científica |
| Dominio: | Bacteria |
| Filo: | Aquificae |
| Clase: | Aquificae |
| Orden: | Aquificales |
| Familia: | Aquificaceae |
|
| Género |
- Aquifex
- Hydrogenivirga
- Hydrogenobacter
- Hydrogenobaculum
- Thermocrinis
|
| Familia: Hydrogenothermaceae |
| Género |
- Hydrogenothermus
- Persephonella
- Sulfurihydrogenibium
- unclassified Hydrogenothermaceae
|
| Familia: unclassified Aquificales |
| Género |
|
|
| Familia: Aquificales genera incertae sedis |
| Género |
- Balnearium
- Desulfurobacterium
- EX-H1 group
- Thermovibrio
|