| MMDBm0001671 | Halobacterium sp. NRC-1 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001681 | Halorubrum lacusprofundi ATCC 49239 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001818 | Methanocaldococcus jannaschii DSM 2661 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001819 | Methanocaldococcus fervens AG86 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001820 | Methanocaldococcus vulcanius M7 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001821 | Methanocaldococcus sp. FS406-22 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001822 | Methanocaldococcus infernus ME | 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 |
| MMDBm0001830 | Methanococcus maripaludis C6 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001831 | Methanococcus voltae A3 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001849 | Methanothermobacter thermautotrophicus str. Delta H | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001850 | Methanothermobacter marburgensis str. Marburg | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001852 | Methanothermus fervidus DSM 2088 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001926 | Natronomonas pharaonis DSM 2160 | 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 |
| 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 |
