the root (no rank)
Archaea (domain)
Euryarchaeota (phylum)
Methanomicrobia (class)
Methanomicrobiales (order)
Methanomicrobiaceae (family)
[hide inferior taxa]
Methanoculleus bourgensis (species)
Methanofollis liminatans (species)
Methanogenium sp. (species)
Methanomicrobium mobile (species)
Methanosphaera stadtmanae (species)
Methanospirillum hungatei (species)
uncultured Methanomicrobiaceae archaeon (species)