life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Empire Bacteria Haeckel 1894 see Domain Bacteria Woese et al. 1990 Kingdom Eubacteria Woese and Fox 1977 see Domain Bacteria Woese et al. 1990 1 Subkingdom Negibacteria Cavalier-Smith 1987 see Subkingdom Negibacteria Cavalier-Smith 2002 2 Subkingdom Posibacteria Cavalier-Smith 1987 see Domain Bacteria Woese et al. 1990