life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Empire Prokaryota (Dougherty 1957) Allsopp 1969 [monotypic] see Domain Bacteria Woese et al. 1990 Kingdom Bacteria (Cohn 1870) Cavalier-Smith 1983 [paraphyletic] - bacteria see Kingdom Bacteria Cavalier-Smith 2002 Subkingdom Negibacteria Cavalier-Smith 1987 [paraphyletic?] see Subkingdom Negibacteria Cavalier-Smith 2002 Infrakingdom Glycobacteria Cavalier-Smith 1998 [paraphyletic?] see Infrakingdom Glycobacteria Cavalier-Smith 2002 Superphylum Pimelobacteria (Cavalier-Smith 1992) Cavalier-Smith 1998 [paraphyletic?] see Domain Bacteria Woese et al. 1990 1 Phylum Sphingobacteria Cavalier-Smith 1987 see Class Sphingobacteria 2 Phylum Eurybacteria Cavalier-Smith 1998 [paraphyletic?] see Domain Bacteria Woese et al. 1990 3 Phylum Cyanobacteria (ex Stanier 1974) Cavalier-Smith 2002 - cyanobacteria 4 Phylum Proteobacteria Garrity and Holt 2001 see Phylum Proteobacteria Garrity et al. 2005