| T01437 | mel | Methanobacterium lacus |
| T01509 | mew | Methanobacterium paludis |
| T02957 | meth | Methanobacterium sp. MB1 |
| T03396 | mfc | Methanobacterium formicicum BRM9 |
| T03743 | mfi | Methanobacterium formicicum DSM1535 |
| T04503 | mcub | Methanobacterium congolense |
| T05275 | msub | Methanobacterium subterraneum |
| T05317 | metn | Methanobacterium sp. MZ-A1 |
| T05692 | mett | Methanobacterium sp. BRmetb2 |
| T05745 | meto | Methanobacterium sp. BAmetb5 |
| T07794 | meme | Methanobacterium alkalithermotolerans |
| T09214 | mfeg | Methanobacterium ferruginis |
Genus: Methanobacterium