| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Methanobrevibacter wolinii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobrevibacter woesei | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobrevibacter thaueri | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobrevibacter smithii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobrevibacter ruminantium T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobrevibacter olleyae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobrevibacter millerae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobrevibacter gottschalkii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobrevibacter filiformis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobrevibacter cuticularis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobrevibacter curvatus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobrevibacter boviskoreani | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobrevibacter arboriphilus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobrevibacter acididurans | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobrevibacter | ||||
| Methanobacterium veterum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobacterium thermaggregans | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobacterium subterraneum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobacterium petrolearium | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobacterium palustre | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobacterium paludis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobacterium oryzae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobacterium movilense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobacterium movens | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobacterium lacus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobacterium kanagiense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobacterium ivanovii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobacterium formicicum T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobacterium flexile | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanobacterium ferruginis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago |