| Name | Class | Order | Family | Genus |
|---|---|---|---|---|
| Methanobrevibacter acididurans | Methanobacteria | Methanobacteriales | Methanobacteriaceae | Methanobrevibacter |
| Methanobrevibacter arboriphilus | Methanobacteria | Methanobacteriales | Methanobacteriaceae | Methanobrevibacter |
| Methanobrevibacter boviskoreani | Methanobacteria | Methanobacteriales | Methanobacteriaceae | Methanobrevibacter |
| Methanobrevibacter curvatus | Methanobacteria | Methanobacteriales | Methanobacteriaceae | Methanobrevibacter |
| Methanobrevibacter cuticularis | Methanobacteria | Methanobacteriales | Methanobacteriaceae | Methanobrevibacter |
| Methanobrevibacter filiformis | Methanobacteria | Methanobacteriales | Methanobacteriaceae | Methanobrevibacter |
| Methanobrevibacter gottschalkii | Methanobacteria | Methanobacteriales | Methanobacteriaceae | Methanobrevibacter |
| Methanobrevibacter millerae | Methanobacteria | Methanobacteriales | Methanobacteriaceae | Methanobrevibacter |
| Methanobrevibacter olleyae | Methanobacteria | Methanobacteriales | Methanobacteriaceae | Methanobrevibacter |
| Methanobrevibacter oralis | Methanobacteria | Methanobacteriales | Methanobacteriaceae | Methanobrevibacter |
| Methanobrevibacter ruminantium | Methanobacteria | Methanobacteriales | Methanobacteriaceae | Methanobrevibacter |
| Methanobrevibacter smithii | Methanobacteria | Methanobacteriales | Methanobacteriaceae | Methanobrevibacter |
| Methanobrevibacter thaueri | Methanobacteria | Methanobacteriales | Methanobacteriaceae | Methanobrevibacter |
| Methanobrevibacter woesei | Methanobacteria | Methanobacteriales | Methanobacteriaceae | Methanobrevibacter |
| Methanobrevibacter wolinii | Methanobacteria | Methanobacteriales | Methanobacteriaceae | Methanobrevibacter |