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 Infrakingdom Eobacteria Cavalier-Smith 2002 see Domain Bacteria Woese et al. 1990 1 Division Eobacteria Cavalier-Smith 2002