Francisellaceae Sjöstedt 2005 emend. Larson et al. 2016 Francisellaceae Sjöstedt 2005 emend. Larson et al. 2016 Francisella Dorofe'ev 1947 (Approved Lists 1980) emend. Huber et al. 2010 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 Thiotrichales Garrity et al. 2005 Francisellaceae Sjöstedt 2005 emend. Larson et al. 2016 Thiotrichales Garrity et al. 2005 Piscirickettsiaceae Fryer and Lannan 2005 emend. Dumler et al. 2001 Thiotrichaceae Garrity et al. 2005 emend. Boden and Scott 2018 Fastidiosibacteraceae Xiao et al. 2018 Thiolineaceae Boden and Scott 2018 Beggiatoaceae Migula 1894 (Approved Lists 1980) Francisella Dorofe'ev 1947 (Approved Lists 1980) emend. 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