prokaryotes - bacteria see Domain Bacteria Woese et al. 1990 stat. inval.
   Domain "Bacteria" Woese et al. 1990 stat. inval. see Domain Bacteria Woese et al. 2024
     Phylum "Chlamydiae" Garrity and Holt 2012 stat. inval. [monotypic] see Phylum Chlamydiota Garrity and Holt 2021
       Class Chlamydiae Cavalier-Smith 2002 nom. rej. [monotypic]
         Order Chlamydiales Storz and Page 1971 (Approved Lists 1980)
           Family Chlamydiaceae Rake 1957 (Approved Lists 1980)
             1 Genus Chlamydia Jones et al. 1945 (Approved Lists 1980)
             2 Genus Chlamydophila Everett et al. 1999 see Genus Chlamydia Jones et al. 1945 (Approved Lists 1980)