[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 Rhodobacterales Garrity et al. 2006
           Family Rhodobacteraceae Garrity et al. 2006
             Genus Catellibacterium Tanaka et al. 2004 see Genus Gemmobacter Rothe et al. 1988
               Catellibacterium nectariphilum Tanaka et al. 2004 see Gemmobacter nectariphilus (Tanaka et al. 2004) Chen et al. 2013