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 discaria Cavalier-Smith, 2021
Clade natates Cavalier-Smith, 2021
Clade photaria Cavalier-Smith, 2021
Clade eucorta Cavalier-Smith, 2021
Superkingdom Corticata Lankester, 1878 - corticates
Kingdom Chromista Caval.-Sm. (1981) - chromists
Subkingdom Harosa Cavalier-Smith, 2010
[crown] Clade Sar Adl et al. 2012 [Simpson & Dunthorn 2020]
Infrakingdom Halvaria Cavalier-Smith, 2010
Superphylum Heterokonta Caval.-Sm. (1986)
Phylum Ochrophyta Caval.-Sm. (1995)
Subphylum Khakista Caval.-Sm. (2000)
Diatomea Kütz. (1844)
Class Mediophyceae Medlin & Kaczmarska (2004) [paraphyletic] - bipolar centrics
Order Triceratiales Round & R.M. Crawford (1990) [monotypic]
Family Triceratiaceaeᵀ Lemmerm. (1899)
01 Genus Amphitetras Ehrenb. (1840)
02 Genus Auliscus Ehrenb. (1843)
03 Genus Cerataulus Ehrenb. (1843)
04 Genus Eupodiscus Bailey (1851)
05 Genus Lampriscus A.Schmidt (1882)
06 Genus Odontella C.Agardh (1832)
07 Genus Pleurosira (Menegh.) Trevar. (1848)
08 Genus Pseudoauliscus
09 Genus Sheshukovia Glezer (1975)
10 Genus Triceratiumᵀ Ehrenb. (1839)