[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain "Archaea" Woese et al. 1990
     Phylum "Crenarchaeota" Garrity and Holt 2001
       Class Thermoprotei Reysenbach 2002
         Order Thermoproteales Zillig and Stetter 1982
           Family Thermoproteaceae Zillig and Stetter 1982
             1 Genus Thermoproteus Zillig and Stetter 1982
             2 Genus Caldivirga Itoh et al. 1999
             3 Genus Pyrobaculum Huber et al. 1988
             4 Genus Thermocladium Itoh et al. 1998
             5 Genus Vulcanisaeta Itoh et al. 2002