living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Plantae Haeckel (1866) - plants
       Subkingdom Embryobionta Cronquist, Takht. & W.Zimm.
         Division Pinophyta Cronquist, Takht. & Zimmerm. see Division Pinophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996)
           Subdivision Cycadicae see Class Cycadopsida Brongn. (1843)
             Class Cycadatae see Class Cycadopsida Brongn. (1843)
               Family Zamiaceae Horan. (1834)
                 Genus Dioon Lindl. (1843), nom. cons., orth. cons.