[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990 stat. inval. see Domain Bacteria Woese et al. 2024
     Phylum "Thermotogae" Reysenbach 2002 stat. inval. see Phylum Thermotogota Reysenbach 2021
       Class Thermotogae Reysenbach 2002
         Order Thermotogales Reysenbach 2002
           Family Thermotogaceae Reysenbach 2002
             1 Genus Thermotoga Stetter and Huber 1986
             2 Genus Fervidobacterium Patel et al. 1985
             3 Genus Geotoga Davey et al. 1993
             4 Genus Marinitoga Wery et al. 2001
             5 Genus Petrotoga Davey et al. 1993
             6 Genus Thermosipho Huber et al. 1989