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 Phaeista Caval.-Sm. (1995)
Infraphylum Marista Caval.-Sm. (2006)
Superclass Raphidoistia Caval.-Sm. (1986) [monotypic]
Class Raphidophyceaeᵀ Chadef. ex P.C.Silva (1980) - raphidophytes
Subclass Raphopoda Cavalier-Smith, 2013
Order Actinophryida Hartmann, 1913 [monotypic]
Suborder Actinosphaerina Cavalier-Smith, 2013 [monotypic]
Family Actinosphaeriidae Schulze, 1877
Genus Actinosphaeriumᵀ Stein, 1857
[Actinosphaerium nucleofilum Barrett, 1958]
see Echinosphaerium nucleofilum (Barrett, 1958) Hovasse, 1965