prokaryotes - bacteria see Domain Bacteria Woese et al. 1990
   Domain "Bacteria" Woese et al. 1990
     Phylum "Bacteroidetes" Krieg et al. 2012
       1 Class Bacteroidia Krieg 2012 [monotypic]
       2 Class Cytophagia Nakagawa 2012 [monotypic]
       3 Class Flavobacteriia Bernardet 2012 [monotypic]
       4 Class Sphingobacteriia Kämpfer 2012 [monotypic]
       5 Genus Marinifilum Na et al. 2009, incertae sedis
       6 Genus Toxothrix Molisch 1925 (Approved Lists 1980), incertae sedis