Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies [[crown] organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] [Superkingdom Prokaryota] [Kingdom Bacteria Cavalier-Smith 2002 - bacteria] see Domain Bacteria Woese et al. 1990 [Subkingdom Unibacteria Cavalier-Smith 2002] see Domain Bacteria Woese et al. 1990 [Phylum Posibacteria Cavalier-Smith 1987 ex Cavalier-Smith 2002] see Domain Bacteria Woese et al. 1990