prokaryotes - bacteria see Domain Bacteria Woese et al. 1990
   Domain "Bacteria" Woese et al. 1990
     Phylum "Bacteroidetes" Krieg et al. 2012
       Class Cytophagia Nakagawa 2012 [monotypic]
         Order Cytophagales Leadbetter 1974 (Approved Lists 1980)
           Family Cyclobacteriaceae Nedashkovskaya and Ludwig 2012
             01 Genus Algoriphagus Bowman et al. 2003
             02 Genus Aquiflexum Brettar et al. 2004
             03 Genus Belliella Brettar et al. 2004
             04 Genus Cecembia Anil Kumar et al. 2012
             05 Genus Chimaereicella Tiago et al. 2006 see Genus Algoriphagus Bowman et al. 2003
             06 Genus Cyclobacterium Raj and Maloy 1990
             07 Genus Echinicola Nedashkovskaya et al. 2006
             08 Genus Fontibacter Kämpfer et al. 2010
             09 Genus Hongiella Yi and Chun 2004 see Genus Algoriphagus Bowman et al. 2003
             10 Genus Indibacter Anil Kumar et al. 2010
             11 Genus Mariniradius Bhumika et al. 2013
             12 Genus Mongoliicoccus Liu et al. 2012
             13 Genus Mongoliitalea Yang et al. 2012
             14 Genus Negadavirga Hu et al. 2015
             15 Genus Nitritalea Anil Kumar et al. 2010
             16 Genus Shivajiella Anil Kumar et al. 2013