| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Methanocalculus pumilus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanocalculus natronophilus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanocalculus halotolerans T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanocalculus chunghsingensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanocalculus alkaliphilus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanocalculus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanocalculaceae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Methanomicrobiales | ||||
| 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 |