Methanobacterium aarhusense
Methanobacterium alcaliphilum
Methanobacterium arcticum
Methanobacterium beijingense
Methanobacterium bryantii
Methanobacterium congolense
Methanobacterium espanolae
Methanobacterium ferruginis
Methanobacterium flexile
Methanobacterium formicicum
Methanobacterium kanagiense
Methanobacterium lacus
Methanobacterium movens
Methanobacterium movilense
Methanobacterium oryzae
Methanobacterium paludis
Methanobacterium palustre
Methanobacterium petrolearium
Methanobacterium subterraneum
Methanobacterium thermaggregans
Methanobacterium veterum
Methanobacterium aggregans
Methanobacterium curvum
Methanobacterium ivanovii
Methanobacterium uliginosum
Methanobacterium arbophilicum
Methanobacterium defluvii
Methanobacterium mobile
Methanobacterium ruminantium
Methanobacterium thermalcaliphilum
Methanobacterium thermautotrophicum
Methanobacterium thermoflexum
Methanobacterium thermoformicicum
Methanobacterium thermophilum
Methanobacterium wolfei