15	Bacteria	Proteobacteria	Gammaproteobacteria	Clostridiales			
52	Bacteria	Bacteroidetes	Bacteroidia	Bacteroidales	mitochondria		
22	Bacteria	Firmicutes	Clostridia	Clostridiales	Ruminococcaceae	Faecalibacterium	Faecalibacterium_prausnitzii
14	Bacteria	Proteobacteria	Gammaproteobacteria	Clostridiales	Lachnospiraceae		
26	Bacteria	Proteobacteria	Clostridia	Clostridiales	Desulfococcus		
24	Bacteria	Proteobacteria	Clostridia	Clostridiales			
10	Bacteria	Proteobacteria	Alphaproteobacteria	Rickettsiales	mitochondria		
27	Bacteria	Proteobacteria	Clostridia	Clostridiales	Cenarchaeaceae	Nitrosopumilus