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 Fragilariophycidae Round (1990) - core araphid diatoms
                                             Order Fragilarialesᵀ P.C.Silva (1962) [monotypic]
                                               Family Fragilariaceaeᵀ Grev. (1833)
                                                 Genus Fragilariaᵀ Lyngb. (1819)
                                                   [Fragilaria acidobiontica Charles (1986)] see Fragilariforma acidobiontica (D.F. Charles, 1986) D.M. Williams & Round (1988)
                                                   Fragilaria acidoclinata Lange-Bertalot & Hofmann
                                                   Fragilaria africana Hustedt
                                                   Fragilaria alpestris Krasske ex Hustedt (1931)
                                                   [Fragilaria atomus Hustedt (1931)] see Martyana atomus (Hustedt, 1931) Snoeijs (1991)
                                                   [Fragilaria berolinensis (Lemmermann) Lange-Bertalot (1989)] see Staurosirella berolinensis (Lemmermann, 1900) L. Bukhtiyarova (1995)
                                                   [Fragilaria bicapitata A. Meyer (1917)] see Fragilariforma bicapitata (A. Meyer, 1917) D.M. Williams & Round (1988)
                                                   Fragilaria biceps (Kützing) Lange-Bertalot
                                                   Fragilaria bidens Heib. (1863)
                                                   [Fragilaria brevistriata Grunow, in Van Heurck (1885)] see Pseudostaurosira brevistriata (Grunow, in Van Heurck, 1885) D.M. Williams & Round (1987)
                                                   [Fragilaria capitata] see Fragilaria dilatata (Bréb.) Lange-Bertalot
                                                   Fragilaria capucina Desmazières (1925)
                                                   [Fragilaria constricta Ehrenberg (1843)] see Fragilariforma constricta (Ehrenberg, 1843) D.M. Williams & Round (1988)
                                                   Fragilaria construens (Ehrenberg) Grunow
                                                   Fragilaria crotonensis Kitton (1869)
                                                   [Fragilaria crotonesis Kitton] see Fragilaria crotonensis Kitton (1869)
                                                   Fragilaria delicatissima
                                                   Fragilaria dilatata (Bréb.) Lange-Bertalot
                                                   [Fragilaria elliptica Schumann (1867)] see Staurosira elliptica (Schumann, 1867) D.M. Williams & Round (1987)
                                                   Fragilaria famelica
                                                   Fragilaria fasciculata (C.Agardh) Lange-Bertalot
                                                   Fragilaria fragilarioides (Grunow, in Van Heurck) Cholnoky (1963)
                                                   Fragilaria gedanensis
                                                   Fragilaria geocollegarum
                                                   [Fragilaria guenter-grassii] see Opephora guenter-grassii (Witkowski & Lange-Bertalot, 1993) K. Sabbe & W. Wyverman (1995)
                                                   Fragilaria heidenii Østrup (1910)
                                                   Fragilaria hyalina (Kützing) Grunow (1862)
                                                   Fragilaria incognita Reichardt (1988)
                                                   Fragilaria inflata (Heiden) Hustedt
                                                   [Fragilaria intermedia Grunow, in Van Heurck (1881)] see Fragilaria capucina var. vaucheriae (Kützing) Lange-Bertalot (1980)
                                                   Fragilaria investiens
                                                   Fragilaria islandica Grunow, in Van Heurck (1881)
                                                   Fragilaria istvanffyi
                                                   [Fragilaria lapponica Grunow, in Van Heurck (1881)] see Staurosirella lapponica (Grunow, in Van Heurck, 1881) D.M. Williams & Round (1987)
                                                   Fragilaria lata (A.Cleve) Renberg (1977)
                                                   [Fragilaria leptostauron (Ehrenberg) Hustedt (1931)] see Staurosirella leptostauron (Ehrenberg) D.M. Williams & Round (1987)
                                                   Fragilaria martyi (Héribaud) Lange-Bertalot
                                                   Fragilaria mazamaensis (Sovereign, 1958) Lange-Bertalot (1980)
                                                   Fragilaria nanana Lange-Bertalot
                                                   Fragilaria neoproducta Lange-Bertalot (1991)
                                                   Fragilaria oceanica Cleve (1873)
                                                   Fragilaria oldenburgiana Hustedt (1959)
                                                   Fragilaria parasitica (W.Sm.) Grunow, in Van Heurck (1881)
                                                   [Fragilaria pinnata Ehrenberg (1843)] see Staurosirella pinnata (Ehrenberg, 1843) D.M. Williams & Round (1987)
                                                   [Fragilaria producta (Lagerst.) Grunow, in Van Heurck (1881)] see Fragilaria capucina Desmazières (1925)
                                                   [Fragilaria pseudoconstruens Marciniak (1982)] see Pseudostaurosira pseudoconstruens (Marciniak, 1982) D.M. Williams & Round (1987)
                                                   Fragilaria reicheltii (Voigt, 1902) Lange-Bertalot (1986)
                                                   [Fragilaria robusta (Fusey) Manguin (1954)] see Pseudostaurosira robusta (Fusey) D.M. Williams & Round (1987)
                                                   Fragilaria schulzii Brockm. (1950)
                                                   Fragilaria sopotensis
                                                   Fragilaria striatula Lyngbye (1819)
                                                   Fragilaria sublinearis
                                                   Fragilaria subsalina (Grunow) Lange-Bertalot
                                                   [Fragilaria tabulata] see Fragilaria fasciculata (C.Agardh) Lange-Bertalot
                                                   Fragilaria tenera (W.Sm., 1856) Lange-Bertalot (1980)
                                                   Fragilaria tenuicollis Heib. (1863)
                                                   Fragilaria ulna (Nitzsch) Lang.-Bert.
                                                   Fragilaria vaucheriae (Kützing) Petersen (1938)
                                                   Fragilaria virescens Ralfs
                                                   x [Fragilaria binalis Ehrenb. (1854)] see Oxyneis binalis (Ehrenb.) Round (1990)
                                                   x [Fragilaria laevissima Cleve (1898)] see Diadesmis laevissima (Cleve) D.G.Mann (1990)