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 Cymbellales D.G.Mann (1990)
Family Gomphonemataceae Kütz. (1844)
Genus Gomphonemaᵀ Ehrenb. (1832)
Gomphonema parvulum (Kützing) Kützing (1849)
Gomphonema parvulum f. saprophilum Lange-Bertalot & Reichardt
Gomphonema parvulum var. exilis Grunow (1878)
Gomphonema parvulum var. exilissimum Grunow (1880)
Gomphonema parvulum var. lagenula (Kützing) Frenguelli
Gomphonema parvulum var. parvulius Lange-Bertalot & Reichardt