life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Empire Prokaryota (Dougherty 1957) Allsopp 1969 [monotypic] see Domain Bacteria Woese et al. 1990 stat. inval.
     Kingdom Bacteria Cavalier-Smith 1998 nom. inval. [paraphyletic] - bacteria see Kingdom Bacteria Cavalier-Smith 2002 stat. inval.
       Subkingdom Unibacteria Cavalier-Smith 1998 [paraphyletic?] see Subkingdom Unibacteria Cavalier-Smith 2002
         Infrakingdom Archaebacteria (Woese and Fox 1977) Cavalier-Smith 1998 [monotypic] see Domain Archaea Woese et al. 1990 stat. inval.
           Phylum Mendosicutes Gibbons and Murray 1978 see Domain Archaea Woese et al. 1990 stat. inval.
             Subphylum Euryarcheota (C.R. Woese et al. 1990) Cavalier-Smith 1998 see Phylum Euryarchaeota Garrity and Holt 2002 stat. inval.
               Infraphylum Eurytherma Cavalier-Smith 1998 see Phylum Euryarchaeota Garrity and Holt 2002 stat. inval.
                 Genus Thermoplasma Darland et al. 1970 (Approved Lists 1980)
                   1 Thermoplasma acidophilum Darland et al. 1970 (Approved Lists 1980)