Domain Bacteria Woese et al. 1990
   01 Phylum Aquificae Reysenbach 2001
   02 Phylum Thermotogae Margulis and Schwartz 1998 - thermophilic fermenters see Phylum Thermotogae Reysenbach 2001
   03 Phylum Thermodesulfobacteria Garrity and Holt 2001 see Phylum Deltaproteobacteria Kuever et al., 2006
   04 Phylum "Deinococcus-Thermus"
   05 Phylum Chrysiogenetes Garrity and Holt 2001
   06 Phylum Chloroflexi Garrity and Holt 2001
   07 Phylum Thermomicrobia Garrity and Holt 2001 see Phylum Chloroflexi Garrity and Holt 2001
   08 Phylum Nitrospirae Garrity and Holt 2001
   09 Phylum Deferribacteres Garrity and Holt 2001
   10 Phylum Cyanobacteria (ex Stanier 1974) Cavalier-Smith 2002 - cyanobacteria
   11 Phylum Chlorobi Garrity and Holt 2001 see Phylum Chlorobi Iino et al. 2010
   12 Phylum Proteobacteria Garrity and Holt 2001 see Phylum Proteobacteria Garrity et al. 2005
   13 Phylum Firmicutes corrig. Gibbons and Murray 1978 (Approved Lists 1980)
   14 Phylum Actinobacteria Garrity and Holt 2001
   15 Phylum Planctomycetes Garrity and Holt 2001
   16 Phylum Chlamydiae Garrity and Holt 2001 see Phylum Chlamydiae Garrity and Holt 2012
   17 Phylum Spirochaetes Garrity and Holt 2001
   18 Phylum Fibrobacteres Garrity and Holt 2001 see Phylum Fibrobacteres Garrity and Holt 2012
   19 Phylum Acidobacteria Garrity and Holt 2001 see Phylum Acidobacteria Thrash and Coates 2012
   20 Phylum Bacteroidetes Garrity and Holt 2001 see Phylum Bacteroidetes Krieg et al. 2012
   21 Phylum Fusobacteria Garrity and Holt 2001 see Phylum Fusobacteria Garrity and Holt 2012
   22 Phylum Verrucomicrobia Garrity and Holt 2001 see Phylum Verrucomicrobia Hedlund 2011
   23 Phylum Dictyoglomi Garrity & Holt 2001 see Phylum Dictyoglomi Patel 2012