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 Hymenobacter Hirsch et al. 1999