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 Bacillariophyceae Haeckel (1878) - pennates
Subclass Bacillariophycidaeᵀ D.G.Mann (1990) - raphid diatoms
Order Naviculales Bessey (1907)
Suborder Neidiineae D.G.Mann (1990)
Family Neidiaceaeᵀ Mereschk. (1903)
Genus Neidiumᵀ Pfitzer (1871)
Neidium affine (Ehrenberg) E. Pfitzer (1871)
Neidium alpinum Hustedt (1943)
Neidium ampliatum (Ehrenberg) Krammer (1985)
Neidium apiculatum Reimer (1959)
Neidium bergii (A.Cleve) Krammer (1985)
Neidium binodeforme Krammer (1985)
Neidium bisulcatum (Lagerst.) Cleve (1894)
Neidium calvum Østrup (1910)
Neidium decoratum Brun (1901)
Neidium densestriatum (Østrup) Krammer (1985)
Neidium dilatatum (Ehrenberg) Cleve (1894)
Neidium distinctepunctatum Hustedt (1922)
Neidium dubium (Ehrenberg) Cleve (1894)
Neidium globiceps (A.Cleve-Euler) A.Cleve-Euler (1955)
Neidium hercynicum A. Mayer (1917)
Neidium hitchcockii (Ehrenberg) Cleve (1894)
Neidium hustedtii Bastow (1954), nom. illeg.
Neidium inconspicuum Hustedt (1921)
Neidium incurvum (Gregory) Østrup (1918)
Neidium iridis (Ehrenberg) Cleve (1894)
Neidium juba J.R. Carter, in J.R. Carter & Bailey-Watts (1981)
Neidium kozlowi Mereschkowsky (1906)
Neidium ladogensis (Cleve) Foged (1952)
Neidium maximum (Cleve) Meister (1912)
Neidium meadeense Foged (1968)
Neidium minutissimum Krasske (1932)
Neidium odamii Bastow (1954)
Neidium opulentum Hustedt (1939)
Neidium perforatum Schimanski (1973)
Neidium productum (W.Sm.) Cleve (1894)
Neidium sacoense Reimer, in R.M. Patrick & Reimer (1966)
Neidium tenuissimum Hustedt (1943)
Neidium testa J.R. Carter, in J.R. Carter & Bailey-Watts (1981)