| Class | Order | Family | Genus | Species |
|---|---|---|---|---|
| Candidatus Bathyarchaeia | 2 | 3 | 3 | 21 |
| Candidatus Culexarchaeia | 1 | 2 | 2 | 6 |
| Candidatus Korarchaeia | 1 | 1 | 3 | 5 |
| Candidatus Nezhaarchaeia | 1 | 1 | 2 | 3 |
| Conexivisphaeria | 1 | 1 | 1 | 5 |
| Methanosuratincolia | 2 | 2 | 5 | 15 |
| Nitrososphaeria | 4 | 6 | 12 | 230 |
| Thermoprotei | 6 | 8 | 40 | 422 |