Legionellaceae Brenner et al. 1979 (Approved Lists 1980) emend. Saini and Gupta 2021 Legionella Brenner et al. 1979 (Approved Lists 1980) emend. Saini and Gupta 2021 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Proteobacteria (sic) Garrity et al. 2021 Pseudomonadota corrig. Garrity et al. 2021 Alphaproteobacteriota (sic) Garrity et al. 2021 Gammaproteobacteria Garrity et al. 2005 emend. Williams and Kelly 2013 Legionellales Garrity et al. 2005 emend. Saini and Gupta 2021 Legionellaceae Brenner et al. 1979 (Approved Lists 1980) emend. Saini and Gupta 2021 Legionellales Garrity et al. 2005 emend. Saini and Gupta 2021 Coxiellaceae Garrity et al. 2005 Incertae sedis 230 Mehari et al. 2016 Incertae sedis 502 Seah et al. 2017 Incertae sedis 686 Tianero et al. 2019 Sarcobium Drozanski 1991 Fluoribacter Garrity et al. 1980 Legionella Brenner et al. 1979 (Approved Lists 1980) emend. Saini and Gupta 2021 Tatlockia Garrity et al. 1980 Garrity G.M. Bell J.A. Lilburn T. Garrity G.M. Brenner D.J. Krieg N.R. Staley J.T. Order VI. Legionellales ord. nov. 2005 2, Part B 2 210 Bergey's Manual of Systematic Bacteriology Springer New York 0387241442 Brenner D.J. Steigerwalt A.G. McDade J.E. Classification of the Legionnaires' disease bacterium: Legionella pneumophila, genus novum, species nova, of the family Legionellaceae, familia nova. 1979 90 656 658 Annals of Internal Medicine Ann Intern Med 0003-4819 1539-3704 434652 Hookey J.V. Saunders N.A. Fry N.K. Birtles R.J. Harrison T.G. Phylogeny of Legionellaceae based on small-subunit ribosomal DNA sequences and proposal of Legionella lytica comb. nov. for Legionella-like amoebal pathogens. 1996 46 2 526 531 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-46-2-526 Garrity G.M. Brown A. Vickers R.M. Tatlockia and Fluoribacter: Two new genera of organisms resembling Legionella pneumophila. 1980 30 4 609 614 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-30-4-609