[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 Chromista Caval.-Sm. (1981) - chromists
       Subkingdom Harosa Cavalier-Smith, 2010
         Infrakingdom Halvaria Cavalier-Smith, 2010
           Superphylum Heterokonta Caval.-Sm. (1986)
             Phylum Pseudofungi Caval.-Sm. (1986) see Phylum Oomycota Arx (1967)
               1 Class Bigyromonadea Caval.-Sm. (1998) [monotypic]
               2 Class Hyphochytrea Caval.-Sm. (1986), nom. inval.
               3 Class Oomycetes G.Winter (1880) - oomycetes see Class Peronosporea