Procaryotic Genera Domain "Bacteria" Woese et al. 1990 Phylum Bacteroidetes Garrity and Holt 2001 see Phylum Bacteroidetes Krieg et al. 2012 Class "Sphingobacteria" [monotypic] see Class Sphingobacteriia Kämpfer 2012 Order "Sphingobacteriales" Kämpfer, 2012 see Order Sphingobacteriales Kämpfer 2012 Family "Flexibacteraceae" see Family Cytophagaceae Stanier 1940 (Approved Lists 1980) Genus Cytophaga Winogradsky 1929 (Approved Lists 1980)