Phylum Chloroflexi Garrity and Holt 2001
   Thermomicrobia Garrity and Holt 2001 nom. inval. see Class Thermomicrobia Garrity and Holt 2002
     Genus Thermomicrobium Jackson et al. 1973 (Approved Lists 1980)
       Thermomicrobium roseum Jackson et al. 1973 (Approved Lists 1980)