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 1 Subkingdom Negibacteria Cavalier-Smith 1987 [paraphyletic?] see Subkingdom Negibacteria Cavalier-Smith 2002 1.n Subkingdom Unibacteria Cavalier-Smith 1998 [paraphyletic?] see Subkingdom Unibacteria Cavalier-Smith 2002