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
Order Fucales Kylin
1 Family Fucaceaeᵀ Adans. (1763)
2 Family Himanthaliaceae (Kjellman) De Toni (1891) [monotypic]
3 Family Hormosiraceae Fritsch (1945) [monotypic]
4 Family Phyllosporaceae
5 Family Sargassaceae Kützing (1843)
6 Family Cystoseiraceae De Toni (1891)