prokaryotes - bacteria see Domain Bacteria Woese et al. 1990
   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 Hyphomonadaceae Lee et al. 2005
             01 Genus Algimonas Fukui et al. 2013
             02 Genus Glycocaulis Abraham et al. 2013
             03 Genus Hellea Alain et al. 2008
             04 Genus Henriciella Quan et al. 2009
             05 Genus Hirschia Schlesner et al. 1990
             06 Genus Hyphomonas (ex Pongratz 1957) Moore et al. 1984
             07 Genus Litorimonas Jung et al. 2011
             08 Genus Maribaculum Lai et al. 2009 see Genus Henriciella Quan et al. 2009
             09 Genus Maricaulis Abraham et al. 1999
             10 Genus Marinicauda Zhang et al. 2013
             11 Genus Oceanicaulis Strömpl et al. 2003
             12 Genus Ponticaulis Kang and Lee 2009
             13 Genus Robiginitomaculum Lee et al. 2007
             14 Genus Woodsholea Abraham et al. 2004