[life] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Empire Prokaryota (Dougherty 1957) Allsopp 1969 see Domain Bacteria Woese et al. 1990
     Kingdom Bacteria Cavalier-Smith 2002 - bacteria see Domain Bacteria Woese et al. 1990
       Subkingdom Negibacteria Cavalier-Smith 2002 - negibacteria see Domain Bacteria Woese et al. 1990
         1 Phylum Eobacteria see Domain Bacteria Woese et al. 1990
         2 Phylum Sphingobacteria Cavalier-Smith 1987 see Class Sphingobacteria
         3 Phylum Spirochaetae (Ehrenberg 1855) Cavalier-Smith 1998 see Phylum Spirochaetes Garrity and Holt 2001
         4 Phylum Proteobacteria Garrity and Holt 2001 see Phylum Proteobacteria Garrity et al. 2005
         5 Phylum Planctobacteria Cavalier-Smith 1987 see Phylum Planctobacteria Cavalier-Smith 2002
         6 Phylum Cyanobacteria (ex Stanier 1974) Cavalier-Smith 2002 - cyanobacteria