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 Sphingobacteriia Kämpfer 2012 [monotypic]
         Order Sphingobacteriales Kämpfer 2012
           Family Saprospiraceae Krieg et al. 2012
             1 Genus Aureispira Hosoya et al. 2006
             2 Genus Haliscomenobacter van Veen et al. 1973 (Approved Lists 1980)
             3 Genus Lewinella Sly et al. 1998
             4 Genus Phaeodactylibacter Chen et al. 2014
             5 Genus Saprospira Gross 1911 (Approved Lists 1980)