Spirochaeta phagedenis Noguchi 1912 Spirochaeta phagedenis Noguchi 1912 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Spirochaetota corrig. Garrity and Holt 2021 Spirochaetes (sic) Garrity and Holt 2021 non Spirochaetes Cavalier-Smith 2002 Spirochaetia (Cavalier-Smith 2002) Paster 2020 Spirochaetales Buchanan 1917 (Approved Lists 1980) emend. Hördt et al. 2020 Spirochaetaceae Swellengrebel 1907 (Approved Lists 1980) emend. Hördt et al. 2020 Spirochaeta Ehrenberg 1835 (Approved Lists 1980) emend. Shivani et al. 2015 Spirochaeta phagedenis Noguchi 1912 Spirochaeta Ehrenberg 1835 (Approved Lists 1980) emend. Shivani et al. 2015 Spirochaeta zuelzerae (ex Veldkamp 1960) Canale-Parola 1980 Spirochaeta asiatica Zhilina et al. 1996 Spirochaeta aurantia (ex Vinzent 1926) Canale-Parola 1980 Spirochaeta cellobiosiphila Breznak and Warnecke 2008 emend. Hördt et al. 2020 Spirochaeta psychrophila Miyazaki et al. 2014 Spirochaeta sinaica Dubinina et al. 2015 Spirochaeta isovalerica Harwood and Canale-Parola 1983 Spirochaeta americana Hoover et al. 2003 Spirochaeta africana Zhilina et al. 1996 emend. Hördt et al. 2020 Spirochaeta dissipatitropha Pikuta et al. 2009 Spirochaeta perfilievii Dubinina et al. 2011 Spirochaeta sphaeroplastigenens Vishnuvardhan Reddy et al. 2013 Spirochaeta lutea Shivani et al. 2015 Spirochaeta coccoides Dröge et al. 2006 Spirochaeta halophila Greenberg and Canale-Parola 1977 (Approved Lists 1980) Spirochaeta stenostrepta Zuelzer 1912 (Approved Lists 1980) Spirochaeta smaragdinae Magot et al. 1998 Spirochaeta alkalica Zhilina et al. 1996 Spirochaeta caldaria Pohlschroeder et al. 1995 Spirochaeta litoralis (ex Hespell and Canale-Parola 1970) Canale-Parola 1980 Spirochaeta plicatilis Ehrenberg 1835 (Approved Lists 1980) Spirochaeta sp. None 2015 Spirochaeta odontotermitis Sravanthi et al. 2015 Spirochaeta thermophila Aksenova et al. 1992 emend. Hördt et al. 2020 Spirochaeta bajacaliforniensis Fracek and Stolz 2004 Spirochaeta phagedenis Noguchi 1912 Noguchi H. Pure cultivation of Spirochaeta phagedenis (new species), a spiral organism found in phagedenic lesions on human external genitalia 1912 16 3 261 268 Journal of Experimental Medicine J Exp Med 0022-1007 1540-9538 10.1084/jem.16.3.261 19867571 Treponema phagedenis (ex Noguchi 1912) Kuhnert et al. 2020 Noguchi H. Pure cultivation of Spirochaeta phagedenis (new species), a spiral organism found in phagedenic lesions on human external genitalia 1912 16 3 261 268 Journal of Experimental Medicine J Exp Med 0022-1007 1540-9538 10.1084/jem.16.3.261 19867571 Smibert R.M. Buchanan R.E. Gibbons N.E. Genus III. Treponema Schaudinn 1905, 1728 1974 8 175 184 Bergey's Manual of Determinative Bacteriology The Williams and Wilkins Co. Baltimore 0683011170