| Class | Order | Family | Genus | Species |
|---|---|---|---|---|
| Archaeoglobi | 2 | 2 | 5 | 72 |
| Candidatus Hikarchaeia | 1 | 1 | 1 | 11 |
| Candidatus Methanofastidiosia | 1 | 1 | 1 | 3 |
| Candidatus Methanoliparia | 1 | 2 | 2 | 8 |
| Candidatus Nanohaloarchaea | 0 | 0 | 2 | 25 |
| Halobacteria | 2 | 11 | 91 | 3888 |
| Methanobacteria | 1 | 2 | 9 | 574 |
| Methanococci | 1 | 2 | 5 | 110 |
| Methanomicrobia | 7 | 17 | 44 | 1669 |
| Methanonatronarchaeia | 1 | 1 | 2 | 9 |
| Methanopyri | 1 | 1 | 1 | 12 |
| Theionarchaea | 0 | 0 | 0 | 4 |
| Thermococci | 1 | 1 | 3 | 507 |