[living organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Status: extant
   Superkingdom Eukaryota Whittaker & Margulis, 1978 see Domain Eukaryota Chatton, 1925
  Status: extant
     Kingdom Plantae Haeckel (1866) - plants
    Status: extant
       Subkingdom Biliphyta Caval.-Sm. (1981) - red algae and glaucophytes see Kingdom Plantae Haeckel (1866)
      Status: extant
         Phylum Rhodophyta Wettst. (1901) - red algae
        Status: extant
           1 Subphylum Cyanidiophytina [monotypic]
          Status: extant
           2 Subphylum Eurhodophytina G.W.Saunders & Hommers. (2004)
          Status: extant
           3 Subphylum Metarhodophytina G.W.Saunders & Hommers. (2004) [monotypic]
          Status: extant
           4 Subphylum Rhodellophytina Caval.-Sm. (1998)
          Status: extant