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)
       1 Chloroflexus aurantiacus Pierson and Castenholz 1974 (Approved Lists 1980)
       2 Chloroflexus aggregans Hanada et al. 1995