[living organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Prokaryota
     Kingdom Bacteria Cavalier-Smith 2002 - bacteria see Domain Bacteria Woese et al. 1990
       Subkingdom Posibacteria Cavalier-Smith 1987 see Domain Bacteria Woese et al. 1990
         Phylum Chloroflexi Garrity and Holt 2001
           Class Ktedonobacteria corrig. Cavaletti et al. 2007
             1 Order Ktedonobacterales corrig. Cavaletti et al. 2007
             2 Order Thermogemmatisporales Yabe et al. 2011