Organism	genome_size(Mb)	average_protein_length	taxonomy
Methanococcus jannaschii, DSM 2661	1.66	283	Archaea; Euryarchaeota; Methanococci; Methanococcales; Methanocaldococcaceae; Methanocaldococcus
Methanobacterium thermoautotrophicum, deltaH	1.75	281	Archaea; Euryarchaeota; Methanobacteria; Methanobacteriales; Methanobacteriaceae; Methanothermobacter
Archaeoglobus fulgidus, DSM4304	2.18	275	Archaea; Euryarchaeota; Archaeoglobi; Archaeoglobales; Archaeoglobaceae; Archaeoglobus
Pyrococcus horikoshii, OT3	1.74	276	Archaea; Euryarchaeota; Thermococci; Thermococcales; Thermococcaceae; Pyrococcus
Aeropyrum pernix, K1	1.67	237	Archaea; Crenarchaeota; Thermoprotei; Desulfurococcales; Desulfurococcaceae; Aeropyrum
Thermoplasma volcanium, GSS1	1.58	297	Archaea; Euryarchaeota; Thermoplasmata; Thermoplasmatales; Thermoplasmataceae; Thermoplasma
Pyrococcus abyssi, GE5	1.76	304	Archaea; Euryarchaeota; Thermococci; Thermococcales; Thermococcaceae; Pyrococcus
Thermoplasma acidophilum, DSM1728	1.56	307	Archaea; Euryarchaeota; Thermoplasmata; Thermoplasmatales; Thermoplasmataceae; Thermoplasma
Halobacterium sp., NRC-1	2.01	280	Archaea; Euryarchaeota; Halobacteria; Halobacteriales; Halobacteriaceae; Halobacterium
Sulfolobus solfataricus, P2	2.99	281	Archaea; Crenarchaeota; Thermoprotei; Sulfolobales; Sulfolobaceae; Sulfolobus
Sulfolobus tokodaii, str. 7	2.69	268	Archaea; Crenarchaeota; Thermoprotei; Sulfolobales; Sulfolobaceae; Sulfolobus
Pyrobaculum aerophilum, IM2	2.22	252	Archaea; Crenarchaeota; Thermoprotei; Thermoproteales; Thermoproteaceae; Pyrobaculum
Methanopyrus kandleri, AV19	1.69	297	Archaea; Euryarchaeota; Methanopyri; Methanopyrales; Methanopyraceae; Methanopyrus
Methanosarcina acetivorans, C2A	5.71	312	Archaea; Euryarchaeota; Methanomicrobia; Methanosarcinales; Methanosarcinaceae; Methanosarcina
Methanosarcina mazei, Go1	4.10	303	Archaea; Euryarchaeota; Methanomicrobia; Methanosarcinales; Methanosarcinaceae; Methanosarcina
Nanoarchaeum equitans, Kin4-M	0.49	272	Archaea; Nanoarchaeota; Nanoarchaeum.
Picrophilus torridus, DSM9790	1.55	307	Archaea; Euryarchaeota; Thermoplasmata; Thermoplasmatales; Picrophilaceae; Picrophilus.
Pyrococcus furiosus, DSM3638	1.91	282	Archaea; Euryarchaeota; Thermococci; Thermococcales; Thermococcaceae; Pyrococcus.
Methanococcus maripaludis, S2	1.66	285	Archaea; Euryarchaeota; Methanococci; Methanococcales; Methanococcaceae; Methanococcus.
Haloarcula marismortui, ATCC43049	3.41	284	Archaea; Euryarchaeota; Halobacteria; Halobacteriales; Halobacteriaceae; Haloarcula.
Thermococcus kodakaraensis, KOD1	2.09	277	Archaea; Euryarchaeota; Thermococci; Thermococcales; Thermococcaceae; Thermococcus.
Sulfolobus acidocaldarius, DSM 639	2.23	284	Archaea; Crenarchaeota; Thermoprotei; Sulfolobales; Sulfolobaceae; Sulfolobus.