[living organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Superkingdom Eukaryota Whittaker & Margulis, 1978 see Domain Eukaryota Chatton, 1925 Kingdom Plantae Haeckel (1866) - plants Subkingdom Viridiplantae Caval.-Sm. (1981) - green plants Infrakingdom Streptophyta Caval.-Sm. (1993) Superphylum Charophyta Migula (1890) [monotypic] Phylum Charophyta Migula (1889) Class Mesostigmatophyceae B.Marin & M. Melkonian (1999) [monotypic] - mesostigmatophytes Order Mesostigmatales T. Cavalier-Sm. (1998)