Procaryotic Genera Count: [*] 25p;39c;84o;215f;1008g [28 May 2016] Domain "Bacteria" Woese et al. 1990 Count: [*] 23p;31c;72o;194f;935g [28 May 2016] Phylum Proteobacteria Garrity and Holt 2001 see Phylum Proteobacteria Garrity et al. 2005 Count: [*] 5c;34o;72f;430g [27 May 2016] Class "Gammaproteobacteria" nom. inval. see Class Gammaproteobacteria Garrity et al. 2005 Count: [*] 14o;22f;169g [27 May 2016] Order "Legionellales" Garrity and Holt 2001 nom. nud. see Order Legionellales Garrity et al. 2005 Count: [*] 2f;3g [27 May 2016] Family "Coxiellaceae" Garrity et al. 2001 nom. ined. see Family Coxiellaceae Garrity et al. 2005 Count: [*] 2g [27 May 2016] Genus Rickettsiella Philip 1956 (Approved Lists 1980) Count: -