the root (no rank)
Bacteria (domain)
Firmicutes (phylum)
Clostridia (class)
Clostridiales (order)
Clostridiaceae (family)
[hide inferior taxa]
Acetivibrio cellulolyticus (species)
Acetobacterium (genus)
Alkaliphilus transvaalensis (species)
Clostridiaceae bacterium (species)
Clostridium (genus)
Eubacterium (genus)
Faecalibacterium prausnitzii (species)
Peptostreptococcus (genus)
Ruminococcus (genus)
Sarcina ventriculi (species)
Thermoanaerobacterium (genus)