Procaryotic Genera
   Domain "Bacteria" Woese et al. 1990 stat. inval. see Domain Bacteria Woese et al. 2024
     Phylum Proteobacteria Garrity and Holt 2001 nom. nud. see Phylum Proteobacteria Garrity et al. 2005 stat. inval.
       Class "Alphaproteobacteria" "Garrity and Holt 2001" nom. nud. see Class Alphaproteobacteria Garrity et al. 2006
         Order "Sphingomonadales" "Garrity and Holt 2001" nom. nud. [monotypic] see Order Sphingomonadales Yabuuchi and Kosako 2006
           Family Sphingomonadaceae Kosako et al. 2000
             Genus Erythromonas Yurkov et al. 1997 see Genus Blastomonas Sly and Cahill 1997