[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     Phylum Deinococcus-Thermus
       Class Deinococci Garrity and Holt 2002
         Order Thermales Rainey and Da Costa 2002
           Family Thermaceae Da Costa and Rainey 2002
             Genus Thermus Brock and Freeze 1969 (Approved Lists 1980)
               1 Thermus aquaticus Brock and Freeze 1969 (Approved Lists 1980)
               2 Thermus antranikianii Chung et al. 2000
               3 Thermus brockianus Williams et al. 1995
               4 Thermus filiformis Hudson et al. 1987
               5 Thermus igniterrae Chung et al. 2000
               6 Thermus oshimai Williams et al. 1996
               7 Thermus scotoductus Kristjansson et al. 1994
               8 Thermus thermophilus (ex Oshima and Imahori 1974) Manaia et al. 1995