There are several models of the Branching order of bacterial phyla, the most cited of these was proposed in 1987 paper by Carl Woese.[1]This cladogram was later expanded by Rappé and Giovanoni in 2003 to include newly discovered phyla.[2] Clear names are added in parentheses, see list of bacterial phyla.
^Wagner, M.; Horn, M. (2006). "The Planctomycetes, Verrucomicrobia, Chlamydiae and sister phyla comprise a superphylum with biotechnological and medical relevance". Current Opinion in Biotechnology. 17 (3): 241–249. doi:10.1016/j.copbio.2006.05.005. PMID16704931.