Phylum Chloroflexi Garrity and Holt 2001
   Chloroflexi Castenholz 2001 nom. inval. see Class Chloroflexia Gupta et al. 2013
     1.1.1 Genus Chloroflexus Pierson and Castenholz 1974 (Approved Lists 1980)
     1.1.2 Genus Oscillochloris Gorlenko and Pivovarova 1989
     1.2 Genus Roseiflexus Hanada et al. 2002
     2 Genus Herpetosiphon Holt and Lewin 1968 (Approved Lists 1980)