Procaryotic Genera Domain "Bacteria" Woese et al. 1990 stat. inval. see Domain Bacteria Woese et al. 2024 Phylum Spirochaetes Garrity and Holt 2001 nom. inval. [monotypic] see Phylum Spirochaetota Garrity and Holt 2021 1 Class "Spirochaetes" "Garrity and Holt 2001" nom. nud. [monotypic] see Class Spirochaetes Cavalier-Smith 2002 nom. rej.