Thiospira Visloukh 1914 emend. La Rivière 1974 (Approved Lists 1980) Thiospira winogradskyi (Omelianski 1905) Visloukh 1914 (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 Gammaproteobacteria Garrity et al. 2005 emend. Williams and Kelly 2013 Thiotrichales Garrity et al. 2005 Beggiatoaceae Migula 1894 (Approved Lists 1980) Thiospira Visloukh 1914 emend. La Rivière 1974 (Approved Lists 1980) Beggiatoaceae Migula 1894 (Approved Lists 1980) Thiothrix Winogradsky 1888 (Approved Lists 1980) emend. Boden and Scott 2018 Cocleimonas Tanaka et al. 2011 Achromatium Schewiakoff 1893 emend. La Rivière 1974 (Approved Lists 1980) Leucothrix Oersted 1844 (Approved Lists 1980) emend. Zhang et al. 2015 Thiomargarita Schulz et al. 1999 Thiobacterium (ex Janke 1924) La Rivière and Kuenen 1989 Thioploca Lauterborn 1907 emend. Maier 1974 (Approved Lists 1980) Beggiatoa Trevisan 1842 emend. Leadbetter 1974 (Approved Lists 1980) Allobeggiatoa Hinck et al. 2011 Thiolava Danovaro et al. 2017 Venteria Fonseca et al. 2017 Thiospira winogradskyi (Omelianski 1905) Visloukh 1914 (Approved Lists 1980) Visloukh S.M. Spirillum kolkwitzii nov. sp. 1914 1 42 51 Zhurnal Mikrobiologii Zh Mikrobiol Garrity G.M. Bell J.A. Lilburn T. Garrity G.M. Brenner D.J. Krieg N.R. Staley J.T. Family I. Thiotrichaceae fam. nov. 2005 2, Part B 2 131 Bergey's Manual of Systematic Bacteriology Springer New York 0387241442