Domain Bacteria Woese et al. 1990
   candidate phyla radiation (CPR) Brown et al. 2015
     Candidate superphylum Microgenomates (OP11) Brown et al. 2015
       1.1 Candidate phylum Curtissbacteria Brown et al. 2015
       1.2.1 Candidate phylum Daviesbacteria Brown et al. 2015
       1.2.2.1 Candidate phylum Levybacteria Brown et al. 2015
       1.2.2.2 Candidate phylum Gottesmanbacteria Brown et al. 2015
       2.1 Candidate phylum Woesebacteria Brown et al. 2015
       2.2.1 Candidate phylum Amesbacteria Brown et al. 2015
       2.2.2.1.1 Candidate phylum Shapirobacteria Brown et al. 2015
       2.2.2.1.2 Candidate phylum Roizmanbacteria Brown et al. 2015
       2.2.2.2.1 Candidate phylum Beckwithbacteria Brown et al. 2015
       2.2.2.2.2.1 Candidate phylum Collierbacteria Brown et al. 2015
       2.2.2.2.2.2 Candidate phylum Pacebacteria Brown et al. 2015