prokaryotes - bacteria see Domain Bacteria Woese et al. 1990 stat. inval.
   Domain "Bacteria" Woese et al. 1990 stat. inval. see Domain Bacteria Woese et al. 2024
     Phylum "Bacteroidetes" Krieg et al. 2012 stat. inval. see Phylum Bacteroidota Krieg et al. 2021
       Class Bacteroidia Krieg 2012 [monotypic]
         Order Bacteroidales Krieg 2012
           Family Prevotellaceae Krieg 2012
             1 Genus Alloprevotella Downes et al. 2013
             2 Genus Hallella Moore and Moore 1994
             3 Genus Paraprevotella Morotomi et al. 2009
             4 Genus Prevotella Shah and Collins 1990
             5 Genus Xylanibacter Ueki et al. 2006 see Genus Prevotella Shah and Collins 1990