[living 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 Negibacteria Cavalier-Smith 2002 - negibacteria see Domain Bacteria Woese et al. 1990
         Phylum Proteobacteria Garrity et al. 2005 see Superphylum Proteobacteria Craig et al. 2010
           Class Gammaproteobacteria Garrity et al. 2005
             Order Pseudomonadales Orla-Jensen 1921 (Approved Lists 1980)