| MMDBm0001366 | Caldivirga maquilingensis IC-167 | Archaea | Crenarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001671 | Halobacterium sp. NRC-1 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001709 | Hyperthermus butylicus DSM 5456 | Archaea | Crenarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001714 | Ignicoccus hospitalis KIN4/I | Archaea | Crenarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001813 | Metallosphaera sedula DSM 5348 | Archaea | Crenarchaeota | 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 |
| 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 |
| MMDBm0001948 | Nitrosopumilus maritimus SCM1 | Archaea | Thaumarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001952 | Aeropyrum pernix K1 | Archaea | Crenarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001953 | Archaeoglobus fulgidus DSM 4304 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001954 | Pyrobaculum aerophilum str. IM2 | Archaea | Crenarchaeota | 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 |
| MMDBm0002420 | Pyrobaculum islandicum DSM 4184 | Archaea | Crenarchaeota | Not Available | Not Available | RHEA |
| MMDBm0002421 | Pyrobaculum calidifontis JCM 11548 | Archaea | Crenarchaeota | Not Available | Not Available | RHEA |
| MMDBm0002422 | Pyrobaculum arsenaticum DSM 13514 | Archaea | Crenarchaeota | Not Available | Not Available | RHEA |
| MMDBm0002642 | Sulfolobus tokodaii str. 7 | Archaea | Crenarchaeota | Not Available | Not Available | RHEA |
| MMDBm0002644 | Sulfolobus islandicus M.14.25 | Archaea | Crenarchaeota | Not Available | Not Available | RHEA |
| MMDBm0002645 | Sulfolobus islandicus L.S.2.15 | Archaea | Crenarchaeota | Not Available | Not Available | RHEA |
| MMDBm0002646 | Sulfolobus islandicus Y.G.57.14 | Archaea | Crenarchaeota | Not Available | Not Available | RHEA |
