Phylum Chloroflexi Garrity and Holt 2001
   Thermomicrobia Garrity and Holt 2001 nom. inval. see Class Thermomicrobia Garrity and Holt 2002
     Genus Sphaerobacter Demharter et al. 1989
       Sphaerobacter thermophilus Demharter et al. 1989