Phylum Chloroflexi Garrity and Holt 2002 stat. inval. see Phylum Chloroflexota Garrity and Holt 2021
   1.1 Chloroflexi "Castenholz 2001" nom. inval. see Class Chloroflexia corrig. Gupta et al. 2013
   1.2 Genus Dehalococcoides nom. inval. see Genus Dehalococcoides Löffler et al. 2013
   2 Thermomicrobia Garrity and Holt 2001 nom. inval. see Class Thermomicrobia Garrity and Holt 2002