pai	Pyrobaculum aerophilum	0
smr	Staphylothermus marinus	1
siy	Sulfolobus islandicus Y.G.57.14	2
pyn	Pyrococcus sp. NA2	3
mew	Methanobacterium sp. SWAN-1	4
mru	Methanobrevibacter ruminantium	5
mtp	Methanosaeta thermophila	6
hwa	Haloquadratum walsbyi	7
csy	Cenarchaeum symbiosum A	8
pto	Picrophilus torridus	9
mvu	Methanocaldococcus vulcanius	10
mpd	Methanocella paludicola	11
kcr	Candidatus Korarchaeum cryptofilum	12
shc	Staphylothermus hellenicus	13
mhu	Methanospirillum hungatei	14