Natura - nature
Ref: C. Linnaeus, 1748: 210
   actualia - actual entities
  Ref: A. Voltolini, 2006: 44 (note 19) [assumed position]
     Mundus Plinius - physical world
    Ref: C. Linnaeus, 1758: 5 [indirect position]; 24 Apr 2014.
       naturalia - natural bodies
      Ref: C. Linnaeus, 1758: 6 [implicit position]
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
        Ref: J. Wiemann et al., 2020: [13] [validation] [inferred position]
           Clade neomura Cavalier-Smith, 1987
          Ref: T. Cavalier-Smith, 2002b: 297 [inferred position]
             Domain Eukaryota Chatton, 1925 - eukaryotes
            Ref: P.M. Kirk et al., 2008: 248 [indirect position]; 19 Sep 2015.
               Clade discaria Cavalier-Smith, 2021
              Ref: T. Cavalier-Smith, 2022(2021) (alt.): table 2 (p. 564), fig. 11 [new taxon] [implicit position]
                 Clade natates Cavalier-Smith, 2021
                Ref: T. Cavalier-Smith, 2022(2021) (alt.): table 2 (p. 564), fig. 11 [new taxon]
                   Clade photaria Cavalier-Smith, 2021
                  Ref: T. Cavalier-Smith, 2022(2021) (alt.): table 2 (p. 564), fig. 11
                     Clade eucorta Cavalier-Smith, 2021
                    Ref: T. Cavalier-Smith, 2022(2021) (alt.): table 2 (p. 564), fig. 11
                       Superkingdom Corticata Lankester, 1878 - corticates
                      Ref: T. Cavalier-Smith, 2022(2021) (alt.): table 2 (p. 564), fig. 11
                         Kingdom Chromista Caval.-Sm. (1981) - chromists
                        Ref: T. Cavalier-Smith et al., 2015: 357 [new position]; Cavalier-Smith, 2022(2021): fig. 11.
                           Subkingdom Harosa Cavalier-Smith, 2010
                          Ref: T. Cavalier-Smith, 2022(2021): 582
                             [crown] Clade Sar Adl et al. 2012 [Simpson & Dunthorn 2020]
                            Ref: A.G.B. Simpson & M. Dunthorn, 2020: [51] [indirect position]; Cavalier-Smith, 2022(2021): fig. 11.
                               Infrakingdom Halvaria Cavalier-Smith, 2010
                              Ref: T. Cavalier-Smith, 2022(2021) (alt.): fig. 11 [implicit position]
                                 Superphylum Heterokonta Caval.-Sm. (1986)
                                Ref: T. Cavalier-Smith et al., 2015: table 1 (p. 344); Cavalier-Smith, 2022(2021): fig. 11.
                                   Phylum Oomycota Arx (1967)
                                  Ref: P.M. Kirk, present: [18 Feb 2016] [indirect position]; 18 Feb 2016.
                                     Class Peronosporea
                                    Ref: P.M. Kirk, present: [15 May 2014]
                                       Subclass Peronosporidaeᵀ
                                      Ref: P.M. Kirk, present: [18 Feb 2016]
                                         Order Peronosporalesᵀ
                                        Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 19)
                                           1 Genus †Peronosporoides E.W.Berry (1916), incertae sedis
                                          Ref: P.M. Kirk, present: [25 Mar 2016]
                                           2.1 Family Crypticolaceae M.W. Dick (1998) [monotypic]
                                          Ref: P.M. Kirk, present: [15 May 2014]
                                           2.2 Family Myzocytiopsidaceae M.W. Dick (1997)
                                          Ref: P.M. Kirk, present: [15 May 2014]
                                           3 Family Peronosporaceaeᵀ
                                          Ref: P.M. Kirk et al., 2001: 570