Gallionellaceae Henrici and Johnson 1935 (Approved Lists 1980) emend. Kojima et al. 2021 Gallionella Ehrenberg 1838 emend. Zavarzin and Hirsch 1974 (Approved Lists 1980) 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 Betaproteobacteria Garrity et al. 2006 emend. Boden et al. 2017 Nitrosomonadales Garrity et al. 2006 emend. Boden et al. 2017 Gallionellaceae Henrici and Johnson 1935 (Approved Lists 1980) emend. Kojima et al. 2021 Nitrosomonadales Garrity et al. 2006 emend. Boden et al. 2017 Nitrosomonadaceae Garrity et al. 2006 Spirillaceae Migula 1894 (Approved Lists 1980) Methylophilaceae Garrity et al. 2006 Thiobacillaceae Boden et al. 2017 Sterolibacteriaceae Boden et al. 2017 Usitatibacteraceae Vieira et al. 2021 Sulfuricella Kojima and Fukui 2010 Sulfurirhabdus Watanabe et al. 2015 Sulfuriferula Watanabe et al. 2015 Ferrigenium Khalifa et al. 2018 Ferriphaselus Kato et al. 2014 Gallionella Ehrenberg 1838 emend. Zavarzin and Hirsch 1974 (Approved Lists 1980) Ferrooxidibacter corrig. Bethencourt et al. 2020 Houarnoksidobacter (sic) Bethencourt et al. 2020 Sideroxyarcus Kato et al. 2022 Kojima H. Kanda M. Umezawa K. Fukui M. Sulfurimicrobium lacus gen. nov., sp. nov., a sulfur oxidizer isolated from lake water, and review of the family Sulfuricellaceae to show that it is not a later synonym of Gallionellaceae. 2021 203 1 317 323 Archives of Microbiology Arch Microbiol 0302-8933 1432-072X 10.1007/s00203-020-02029-0 32926197 Boden R. Scott K.M. Williams J. Russell S. Antonen K. Rae A.W. Hutt L.P. An evaluation of Thiomicrospira, Hydrogenovibrio and Thioalkalimicrobium: reclassification of four species of Thiomicrospira to each Thiomicrorhabdus gen. nov. and Hydrogenovibrio, and reclassification of all four species of Thioalkalimicrobium to Thiomicrospira 2017 67 5 1140 1151 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.001855 28581925 Bethencourt L. Bochet O. Farasin J. Aquilina L. Borgne T.L. Quaiser A. Biget M. Michon-Coudouel S. Labasque T. Dufresne A. Genome reconstruction reveals distinct assemblages of Gallionellaceae in surface and subsurface redox transition zones. 2020 96 5 FEMS Microbiology Ecology FEMS Microbiol Ecol 0168-6496 10.1093/femsec/fiaa036 32149354 Kato S. Itoh T. Iino T. Ohkuma M. Sideroxyarcus emersonii gen. nov. sp. nov., a neutrophilic, microaerobic iron- and thiosulfate-oxidizing bacterium isolated from iron-rich wetland sediment. 2022 72 4 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.005347 35476601 Garrity G.M. Holt J.G. Garrity G.M. Boone D.R. Castenholz R.W. The Road Map to the Manual 2001 1 2 119 169 Bergey's Manual of Systematic Bacteriology Springer New York Boden et al. 2017 transferred all child taxa of Sulfuricellaceae Watanabe et al. 2015 into Gallionellaceae Henrici and Johnson 1935 (Approved Lists 1980) via an emendation, effectively resulting in a unification of the taxa.