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 Chlorophyta Caval.-Sm. (1993) [monotypic] - green algae Phylum Chlorophyta Pascher (1914) - green algae Subphylum Chlorophytina T. Cavalier-Sm. (1998) see Phylum Chlorophyta Pascher (1914) 1 Genus Mesostigma Lauterborn (1894) 2 Genus Pterosperma Pouchet (1893) 3 Genus Halosphaera K.J.F.Schmitz (1879) 4 Infraphylum Prasinophytae T. Cavalier-Sm. (1998) [paraphyletic] see Class Prasinophyceae T. Christensen, 1962 ex Ø. Moestrup & J. Throndsen (1988) 5 Infraphylum Tetraphytae T. Cavalier-Sm. (1998) see Phylum Chlorophyta Pascher (1914)