prokaryotes - bacteria see Domain Bacteria Woese et al. 1990
   Domain "Bacteria" Woese et al. 1990
     Phylum "Chlorobi" Iino et al. 2010
       Class Ignavibacteria Iino et al. 2010 [monotypic]
         Order Ignavibacteriales Iino et al. 2010
           1 Family "Melioribacteraceae" Podosokorskaya et al. 2013 [monotypic]
           2 Family Ignavibacteriaceae Iino et al. 2010 [monotypic]