Natura - nature
actualia - actual entities
Mundus Plinius - physical world
naturalia - natural bodies
[crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Clade "neomura" Cavalier-Smith 1987
Domain Eukaryota Chatton, 1925 - eukaryotes
Clade neokaryotes Cavalier-Smith 1993 - mitochondrial eukaryotes
Clade neozoa Cavalier-Smith 1993
Superkingdom Corticata Lankester, 1878
Kingdom Chromista Caval.-Sm. (1981) - chromists
Subkingdom Harosa Cavalier-Smith, 2010
Infrakingdom Halvaria Cavalier-Smith, 2010
Superphylum Heterokonta Caval.-Sm. (1981)
Phylum Ochrophyta Caval.-Sm. (1995)
Subphylum Phaeista Caval.-Sm. (1995)
Infraphylum Limnista Caval.-Sm. (2006)
Class Chrysophyceae Pascher (1914)
1 ?Order Thallochrysidales
2.1 Order Chromulinales Pascher, 1910b
2.2.1 Order Paraphysomonadales Caval.-Sm. (1996)
2.2.2.1 Order Synurales R.A. Andersen (1987)
2.2.2.2.1 Order Chrysosphaerales
2.2.2.2.2 Order Hibberdiales R.A. Andersen, 1989a
2.2.2.2.3 Order Ochromonadales Pascher, 1910b
2.3 Order Hydrurales Pascher (1931) [monotypic]
3.1 Order Chloramoebales [monotypic]
3.2 Order Heterogloeales