Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               Clade discaria Cavalier-Smith, 2021
                 Clade dorsates Cavalier-Smith, 2021
                   Clade podiates Cavalier-Smith, 2012
                     [crown] Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
                       [crown] Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
                         Class Breviatea Cavalier-Smith, 2004 [coordinate rank] [monotypic] - breviates
                           Order Breviatidaᵀ Cavalier-Smith, 2004
                             Family Pygsuidae Cavalier-Smith, 2021 [monotypic]
                               Genus Pygsuiaᵀ Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger, 2013 [monotypic]
                                 Pygsuia biformaᵀ Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger, 2013