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 Psilotophyta Heintze (1927) see Phylum Psilophyta Subdivision Psilotopsida Scott (1909) see Class Psilotopsida D.H.Scott (1909) 1 Order Psilotales Prantl (1884)