life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Empire Eukaryota (Chatton, 1925) see Domain Eukaryota Chatton, 1925 Kingdom Plantae Haeckel (1866) - plants Subkingdom Viridiplantae Caval.-Sm. (1981) - green plants Infrakingdom Cormophyta Caval.-Sm. (1998) - embryophytes see Subkingdom Viridaeplantae Cavalier-Sm. (1981) [Phylum Tracheophyta Sinnott (1935), nom. nud.] see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998)