Archaea  >  Methanobacteriati  >  Methanobacteriota  >  Methanomicrobia

Order	Family	Genus	Species
Candidatus Alkanophagales	0	1	3
Candidatus Methanoflorentales	1	1	2
Candidatus Methanophagales	2	3	20
Methanocellales	1	2	14
Methanomicrobiales	7	16	728
Methanosarcinales	5	19	497
Methanotrichales	1	2	338