[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 Methanopyri Garrity and Holt 2002
         Order Methanopyrales Huber and Stetter 2002
           Family Methanopyraceae Huber and Stetter 2002
             Genus Methanopyrus Kurr et al. 1992
               Methanopyrus kandleri Kurr et al. 1992