| MMDBm0000218 | Methanobrevibacter smithii ATCC 35061 | Not Available | Euryarchaeota | Human Feces | Not Available | RHEA |
| MMDBm0001669 | Haloarcula marismortui ATCC 43049 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001678 | Haloquadratum walsbyi DSM 16790 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001818 | Methanocaldococcus jannaschii DSM 2661 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001825 | Methanococcus maripaludis S2 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001826 | Methanococcus maripaludis C5 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001827 | Methanococcus vannielii SB | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001829 | Methanococcus maripaludis C7 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001830 | Methanococcus maripaludis C6 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001833 | Methanocorpusculum labreanum Z | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001834 | Methanoculleus marisnigri JR1 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001839 | Methanoregula boonei 6A8 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001843 | Methanosarcina acetivorans C2A | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001844 | Methanosarcina mazei Go1 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001845 | Methanosarcina barkeri str. Fusaro | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001846 | Methanosphaera stadtmanae DSM 3091 | Not Available | Euryarchaeota | Human | Not Available | RHEA |
| MMDBm0001847 | Methanosphaerula palustris E1-9c | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001848 | Methanospirillum hungatei JF-1 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001849 | Methanothermobacter thermautotrophicus str. Delta H | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001926 | Natronomonas pharaonis DSM 2160 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001953 | Archaeoglobus fulgidus DSM 4304 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001955 | Picrophilus torridus DSM 9790 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001956 | uncultured methanogenic archaeon RC-I | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0002423 | Pyrococcus abyssi GE5 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0002424 | Pyrococcus horikoshii OT3 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
