[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain "Archaea" Woese et al. 1990
     Phylum "Euryarchaeota" Garrity and Holt 2001
       Class Thermococci Zillig and Reysenbach 2002
         Order Thermococcales Zillig 1988
           Family Thermococcaceae Zillig 1988
             Genus Pyrococcus Fiala and Stetter 1986
               Pyrococcus furiosus Fiala and Stetter 1986