[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Domain Bacteria Woese et al. 1990 Phylum "Spirochaetes" Garrity and Holt 2001 Class "Spirochaetes" Cavalier-Smith, 2002 see Class Spirochaetes Cavalier-Smith 2002 Order Spirochaetales Buchanan 1917 (Approved Lists 1980) Family "Brachyspiraceae" nom. ined. see Family Brachyspiraceae Paster 2012 Genus Serpula Stanton et al. 1991 see Genus Serpulina Stanton 1992