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 Marista Caval.-Sm. (2006)
Superclass Fucistia Caval.-Sm. (1995)
Class Phaeophyceae Hansgirg (1886) - brown algae
01 Order Ectocarpales Bessey (1907)
02.1 Order Chordariales
02.2 Order Ishigeales Cho, Lee & Boo (2004)
02.3 Order Scytothamnales Peters & Clayton (1998)
03 Order Cutleriales Bessey (1907)
04 Order Tilopteridales Bessey (1907)
05.1 Order Sphacelariales Migula (1908)
05.2 Order Syringodermatales Henry (1984)
06 Order Dictyotales Bory de Saint-Vincent (1828)
07 Order Sporochnales Sauvageau (1926)
08 Order Desmarestiales Setchell & Gardner (1925)
09 Order Dictyosiphonales
10 Order Scytosiphonales
11 Order Laminariales Migula (1908)
12 Order Fucales Kylin
13 Order Durvillaeales J. Petrov (1965)
14 Order Ascoseirales Petrov (1964) [monotypic]