[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 Sulfolobales Stetter 1989
           Family Sulfolobaceae Stetter 1989
             Genus Metallosphaera Huber et al. 1989
               1 Metallosphaera sedula Huber et al. 1989
               2 Metallosphaera hakonensis (Takayanagi et al. 1996) Kurosawa et al. 2003
               3 Metallosphaera prunae Fuchs et al. 1996