| Order | Family | Genus | Species |
|---|---|---|---|
| Acetivibrionales | 0 | 0 | 1 |
| Caldicoprobacterales | 2 | 2 | 13 |
| Candidatus Darwinibacteriales | 2 | 2 | 3 |
| Christensenellales | 1 | 12 | 123 |
| Eubacteriales | 31 | 277 | 6590 |
| Halanaerobiales | 4 | 19 | 133 |
| Koleobacterales | 1 | 1 | 1 |
| Lachnospirales | 6 | 144 | 2150 |
| Lutisporales | 1 | 1 | 5 |
| Monoglobales | 1 | 1 | 6 |
| Moorellales | 4 | 6 | 60 |
| Natranaerobiales | 2 | 5 | 18 |
| Peptostreptococcales | 10 | 58 | 597 |
| Saccharofermentanales | 2 | 1 | 4 |
| Thermoanaerobacterales | 4 | 18 | 403 |
| Thermosediminibacterales | 2 | 7 | 35 |