[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     Phylum "Proteobacteria" Garrity et al. 2005 see Superphylum Proteobacteria Craig et al. 2010
       Class Alphaproteobacteria Garrity et al. 2006
         Order Caulobacterales Henrici and Johnson 1935 (Approved Lists 1980)
           Family Caulobacteraceae Henrici and Johnson 1935 (Approved Lists 1980)
             Genus Phenylobacterium Lingens et al. 1985
               1 Phenylobacterium immobile Lingens et al. 1985
               2 Phenylobacterium falsum Tiago et al. 2005
               3 Phenylobacterium koreense Aslam et al. 2005
               4 Phenylobacterium lituiforme Kanso and Patel 2004