prokaryotes - bacteria see Domain Bacteria Woese et al. 1990
   Domain "Bacteria" Woese et al. 1990
     Phylum "Proteobacteria" Garrity et al. 2005 see Superphylum Proteobacteria Craig et al. 2010
       Class Gammaproteobacteria Garrity et al. 2005
         Order Nevskiales Naushad et al. 2015
           1 Family "Salinisphaeraceae" Naushad et al., 2015 [monotypic]
           2 Family Algiphilaceae Gutierrez et al. 2012 [monotypic]
           3 Family Nevskiaceae Henrici and Johnson 1935 (Approved Lists 1980)