Branching order of bacterial phyla (Battistuzzi et al., 2004)

There are several models of the Branching order of bacterial phyla, one of these was proposed in 2004 by Battistuzzi and Hedges,[1][2] note the coinage of the taxa Terrabacteria and Hydrobacteria.

Archaea Thermotogae Aquificae Fusobacteria Actinobacteria Deinococcus-Thermus Firmicutes Chloroflexi Cyanobacteria Planctomycetes Spirochaetes Chlamydiae Bacteroidetes Chlorobi Epsilonproteobacteria Deltaproteobacteria Solibacteres Alphaproteobacteria Betaproteobacteria Gammaproteobacteria