Diplocalyx (Gharagozlou 1968) Bermudes et al. 1988 Diplocalyx (Gharagozlou 1968) Bermudes et al. 1988 Diplocalyx calotermitidis (ex Gharagozlou 1968) Bermudes et al. 1988 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 Diplocalyx (Gharagozlou 1968) Bermudes et al. 1988 Spirochaetaceae Swellengrebel 1907 (Approved Lists 1980) emend. Hördt et al. 2020 Hollandina (ex To and Margulis 1978) Bermudes et al. 1988 Treponema Schaudinn 1905 (Approved Lists 1980) emend. Abt et al. 2013 Sphaerochaeta Ritalahti et al. 2012 emend. Bidzhieva et al. 2020 Salinispira Ben Hania et al. 2015 Alkalispirochaeta Sravanthi et al. 2016 Marispirochaeta Shivani et al. 2017 Sediminispirochaeta Shivani et al. 2016 Pleomorphochaeta Arroua et al. 2017 Saprospira Gross 1911 emend. Lewin and Leadbetter 1974 (Approved Lists 1980) Clevelandina Bermudes et al. 1988 Pillotina (ex Hollande and Gharagozlou 1967) Bermudes et al. 1988 Borrelia Swellengrebel 1907 (Approved Lists 1980) emend. Margos et al. 2018 Leptospira Noguchi 1917 (Approved Lists 1980) emend. Faine and Stallman 1982 Spirochaeta Ehrenberg 1835 (Approved Lists 1980) emend. Shivani et al. 2015 Cristispira Gross 1910 emend. Kuhn 1974 (Approved Lists 1980) Rectinema Koelschbach et al. 2017 Oceanispirochaeta Subhash and Lee 2017 Spironema (sic) Sikutová et al. 2010 Allospironema corrig. Sikutová et al. 2010 Thiospirochaeta Dubinina et al. 2020 Bullifex Wylensek et al. 2021 Diplocalyx calotermitidis (ex Gharagozlou 1968) Bermudes et al. 1988 Bermudes D. Chase D. Margulis L. Morphology as a Basis for Taxonomy of Large Spirochetes Symbiotic in Wood-Eating Cockroaches and Termites: Pillotina gen. nov., nom. rev.; Pillotina calotermitidis sp. nov., nom. rev.; Diplocalyx gen. nov., nom. rev.; Diplocalyx calotermitidis sp. nov., nom. rev.; Hollandina gen. nov., nom. rev.; Hollandina pterotermitidis sp. nov., nom. rev.; and Clevelandina reticulitermitidis gen. nov., sp. nov. 1988 38 3 291 302 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-38-3-291 11542253 Gharagozlou I.D. Aspect infrastructural de Diplocalyx calotermitidis nov.gen. nov.sp., spirochaetale de l'intestin de Calotermes flavicollis 1968 266 494 496 Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences. Serie D: Sciences Naturelles C R Hebd Seances Acad Sci D 0567-655X Bermudes D. Chase D. Margulis L. Morphology as a Basis for Taxonomy of Large Spirochetes Symbiotic in Wood-Eating Cockroaches and Termites: Pillotina gen. nov., nom. rev.; Pillotina calotermitidis sp. nov., nom. rev.; Diplocalyx gen. nov., nom. rev.; Diplocalyx calotermitidis sp. nov., nom. rev.; Hollandina gen. nov., nom. rev.; Hollandina pterotermitidis sp. nov., nom. rev.; and Clevelandina reticulitermitidis gen. nov., sp. nov. 1988 38 3 291 302 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-38-3-291 11542253