Superkingdom Eukaryota Whittaker & Margulis, 1978 see Domain Eukaryota Chatton, 1925 Kingdom Chlorobiota Jeffrey (1971), nom. inval. see Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) Subkingdom Ulvobionta [monotypic] Division Ulvophyta F.E. Round (1984), nom. nud. see Phylum Ulvophyta Doweld (2001) Class "Ulvophyceae" K.R. Mattox & K.D. Stewart (1984) [monophyletic?] - ulvophytes