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 "Gammaproteobacteria" "Garrity and Holt 2001" nom. nud. see Class Gammaproteobacteria Garrity et al. 2005 Order "Thiotrichales" "Garrity and Holt 2001" nom. nud. see Order Thiotrichales Garrity et al. 2005 nom. illeg. Family "Thiotrichaceae" Pringsheim 1949 nom. inval. see Family Thiotrichaceae Garrity et al. 2005 nom. illeg. Genus Thiothrix Winogradsky 1888 (Approved Lists 1980)