life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Superkingdom Prokarya see Domain Bacteria Woese et al. 1990 Kingdom Bacteria (Cohn 1870) Cavalier-Smith 1983 - bacteria see Kingdom Bacteria Cavalier-Smith 2002 Subkingdom Eubacteria Cavalier-Smith 1981 see Domain Bacteria Woese et al. 1990 Division Gracilicutes Gibbons and Murray 1978 (Approved Lists 1980) see Phylum Gracilicutes 1 Phylum Proteobacteria Garrity and Holt 2001 see Phylum Proteobacteria Garrity et al. 2005 2 Phylum Spirochaetae (Ehrenberg 1855) Cavalier-Smith 1998 see Phylum Spirochaetes Garrity and Holt 2001 3 Phylum Cyanobacteria (ex Stanier 1974) Cavalier-Smith 2002 - cyanobacteria 4 Phylum Saprospirae see Domain Bacteria Woese et al. 1990 5 Phylum Chloroflexa see Phylum Chloroflexi Garrity and Holt 2001 6 Phylum Chlorobia see Phylum Chlorobi Garrity and Holt 2001