| Class | Order | Family | Genus | Species |
|---|---|---|---|---|
| Candidatus Dadabacteria | 1 | 3 | 3 | 12 |
| Candidatus Desulfocorpusculia | 1 | 1 | 1 | 1 |
| Candidatus Desulfofervidia | 1 | 1 | 1 | 5 |
| Deferrisomatia | 1 | 1 | 1 | 7 |
| Desulfarculia | 2 | 2 | 5 | 27 |
| Desulfobaccia | 1 | 1 | 1 | 12 |
| Desulfobacteria | 2 | 14 | 34 | 368 |
| Desulfobulbia | 1 | 4 | 19 | 400 |
| Desulfomonilia | 1 | 1 | 1 | 14 |
| Desulfovibrionia | 1 | 8 | 38 | 1021 |
| Desulfuromonadia | 2 | 8 | 23 | 369 |
| Dissulfuribacteria | 1 | 1 | 2 | 9 |
| Syntrophia | 1 | 2 | 2 | 154 |
| Syntrophobacteria | 1 | 2 | 11 | 102 |
| Syntrophorhabdia | 1 | 1 | 1 | 43 |
| Thermodesulfobacteria | 1 | 2 | 6 | 60 |