prokaryotes - bacteria see Domain Bacteria Woese et al. 1990
   Domain "Bacteria" Woese et al. 1990
     Phylum "Chloroflexi" Garrity and Holt 2001
       Class Chloroflexia Gupta et al. 2013
         Order Chloroflexales Gupta et al. 2013
           Suborder Roseiflexineae Gupta et al. 2013
             Family Chloroflexaceae Gupta et al. 2013 [monotypic]
               Genus Chloroflexus Pierson and Castenholz 1974 (Approved Lists 1980)