Procaryotic Genera Domain "Bacteria" Woese et al. 1990 Phylum Bacteroidetes Garrity and Holt 2001 see Phylum Bacteroidetes Krieg et al. 2012 Class "Bacteroidetes" Krieg et al., 2012 [monotypic] see Class Bacteroidia Krieg et al., 2012 Order "Bacteroidales" Krieg 2012 see Order Bacteroidales Krieg 2012 Family Bacteroidaceae Pribram 1933 (Approved Lists 1980) Genus Acetofilamentum Dietrich et al. 1989