prokaryotes - bacteria see Domain Bacteria Woese et al. 1990
   Domain "Bacteria" Woese et al. 1990
     Phylum "Actinobacteria" Garrity and Holt 2001
       Class Nitriliruptoria Ludwig et al. 2013
         1 Order Egibacterales Zhang et al. 2016 [monotypic]
         2 Order Euzebyales Kurahashi et al. 2010 [monotypic]