| MMDBm0001671 | Halobacterium sp. NRC-1 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001818 | Methanocaldococcus jannaschii DSM 2661 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001824 | Methanococcoides burtonii DSM 6242 | 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 |
| MMDBm0001828 | Methanococcus aeolicus Nankai-3 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001829 | Methanococcus maripaludis C7 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001838 | Methanopyrus kandleri AV19 | 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 |
| MMDBm0001849 | Methanothermobacter thermautotrophicus str. Delta H | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001952 | Aeropyrum pernix K1 | Archaea | Crenarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001954 | Pyrobaculum aerophilum str. IM2 | Archaea | Crenarchaeota | 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 |
| MMDBm0002425 | Pyrococcus furiosus DSM 3638 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0002642 | Sulfolobus tokodaii str. 7 | Archaea | Crenarchaeota | Not Available | Not Available | RHEA |
| MMDBm0002643 | Sulfolobus acidocaldarius DSM 639 | Archaea | Crenarchaeota | Not Available | Not Available | RHEA |
| MMDBm0002690 | Thermococcus kodakarensis KOD1 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0002691 | Thermococcus onnurineus NA1 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0002692 | Thermococcus gammatolerans EJ3 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0002693 | Thermococcus sibiricus MM 739 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
