Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Domain Bacteria Woese et al. 1990 [paraphyletic?] Superphylum "Proteobacteria" Craig et al. 2010 Phylum "Gammaproteobacteria" Garrity et al., 2005 [monotypic] Class Gammaproteobacteriaᵀ Garrity et al. 2005 Order Cellvibrionales Spring et al. 2015 Family Cellvibrionaceaeᵀ Spring et al. 2015 Genus Cellvibrioᵀ (ex Winogradsky 1929) Blackall et al. 1986 Cellvibrio gandavensis Mergaert et al. 2003