| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Methanothermococcus thermolithotrophicus T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanothermococcus okinawensis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanothermococcus | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanothermobacter wolfei | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanothermobacter thermophilus | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanothermobacter thermoflexus | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanothermobacter thermautotrophicus T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanothermobacter tenebrarum | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanothermobacter marburgensis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanothermobacter defluvii | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanothermobacter crinale | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanothermobacter | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanospirillum stamsii | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanospirillum psychrodurum | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanospirillum lacunae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanospirillum hungatei T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanospirillum | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanospirillaceae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanosphaerula palustris T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanosphaerula | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanosphaera stadtmanae T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanosphaera cuniculi | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanosphaera | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanosarcina vacuolata | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanosarcina thermophila | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanosarcina subterranea | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanosarcina spelaei | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanosarcina soligelidi | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanosarcina siciliae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Methanosarcina semesiae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago |