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 "Betaproteobacteria" "Garrity and Holt 2001" nom. nud. see Class Betaproteobacteria Garrity et al. 2006 Order "Burkholderiales" "Garrity and Holt 2001" nom. nud. see Order Burkholderiales Garrity et al. 2006 Family "Ralstoniaceae" "Garrity and Holt 2001" nom. nud. [monotypic] see Family Burkholderiaceae Garrity et al. 2006 Genus Ralstonia Yabuuchi et al. 1996