Phylum Chloroflexi Garrity and Holt 2001
   Chloroflexi Castenholz 2001 nom. inval. see Class Chloroflexia Gupta et al. 2013
     Genus Chloroflexus Pierson and Castenholz 1974 (Approved Lists 1980)
       Chloroflexus aurantiacus Pierson and Castenholz 1974 (Approved Lists 1980)