DiatomBase
Between brackets is the number of accepted extant species
Click on "-" to collapse/hide all child taxa
Shows the number of accepted extant species within the taxon
The last expanded taxon is highlighted
Click on "+" to expand/show all child taxa
Click to see the taxon details page
- Bacillariophyceae (5 957)
- Subclass Bacillariophyceae incertae sedis (189)
- Subclass Bacillariophycidae (4 408)
- Superorder Bacillariophycanae (4 083)
- Order Achnanthales (438)
- Family Achnanthaceae Kützing, 1844 (111)
- Family Achnanthidiaceae D.G. Mann, 1990 (244)
- Genus Achnantheiopsis Lange-Bert., 1997 accepted as Planothidium F.E. Round & L. Bukhtiyarova, 1996 (1)
- Genus Achnanthidium F.T. Kützing, 1844 (57)
- Genus Crenotia Wojtal, 2013 (8)
- Genus Eucocconeis P.T. Cleve ex F. Meister, 1912 (4)
- Genus Gliwiczia M.Kulikovskiy, Lange-Bertalot & A.Witkowski, 2013 (5)
- Genus Gliwiczia Kulikovskiy, M., Lange-Bertalot, H. & Witkowski, A., 2013
- Genus Gololobovia Kulikovskiy, Glushchenko, Genkal & Kociolek in Kulikovskiy et al., 2020 (4)
- Genus Karayevia F.E. Round & L. Bukhtiyarova ex F.E. Round, 1998 (19)
- Genus Kolbesia F.E. Round & L. Bukhtiyarova ex F.E. Round, 1998 (2)
- Genus Lemnicola F.E. Round & P.W. Basson, 1997
- Genus Madinithidium C.Desrosiers, A.Witkowski & C.Riaux-Gobin, 2014 (7)
- Genus Majewskaea Van de Vijver, K.Robert, Witkowski & Bosak, 2020 (1)
- Genus Planothidium F.E. Round & L. Bukhtiyarova, 1996 (71)
- Genus Platebaikalia Kulikovskiy, Glushchenko, Genkal et Kociolek in Kulikovskiy et al., 2020 (1)
- Genus Psammothidium L. Bukhtiyarova & F.E. Round, 1996 (35)
- Species Psammothidium abundans (Manguin, Bourrelly & Manguin) L.Bukhtiyarova, 1996
- Species Psammothidium acidoclinatum (Lange-Bertalot) Lange-Bertalot, 1999
- Species Psammothidium acutomanguinii Van de Vijver, 2019
- Species Psammothidium alpinum M.Potapova & M.D.Enache, 2013
- Species Psammothidium altaicum (Poretzky) L.Bukhtiyarova, 1996
- Species Psammothidium antarcticum Van de Vijver, 2019
- Species Psammothidium aretasii (Manguin) R.Le Cohu, 2005
- Species Psammothidium bioretii (Germain) L.N.Bukhtiyarova & Round, 1996
- Species Psammothidium bristolicum L.Bukhtiyarova, 1996
- Species Psammothidium buccolum (Cholnoky) L.Bukhtiyarova, 1996
- Species Psammothidium cataractarum (Hustedt) Kulikovskiy, Glushchenko & Kociolek, 2020
- Species Psammothidium chlidanos (Hohn & Hellerman) Lange-Bertalot, 1999 accepted as Achnanthes chlidanos M.H.Hohn & Hellerman, 1963
- Species Psammothidium confusiforme Van de Vijver & Beyens, 2002
- Species Psammothidium confusum (Manguin) Van de Vijver, 2002
- Species Psammothidium curtissimum (J.R.Carter) M.Aboal, 2003 accepted as Achnanthes curtissima J.R.Carter, 1963
- Species Psammothidium daonense (Lange-Bertalot) Lange-Bertalot, 1999 accepted as Achnanthes daonensis Lange-Bertalot, 1989
- Species Psammothidium didymum (Hustedt) L.Bukhtiyarova & Round, 1996 accepted as Achnanthes didyma Hustedt, 1933
- Species Psammothidium ellipticomanguinii Van de Vijver, 2019
- Species Psammothidium frigidum (Hustedt) L.Bukhtiyarova & Round, 1996
- Species Psammothidium germainii (Manguin) K. Sabbe in Sabbe et al., 2003 accepted as Achnanthes germainii Manguin in Bourrelly & Manguin, 1954
- Species Psammothidium germainioides Van de Vijver, Kopalova & Zidarova, 2016
- Species Psammothidium grischunum (Wuthrich) Bukhtiyarova & Round, 1996 accepted as Achnanthes grischuna Wuthrich, 1975
- Species Psammothidium guangzhouae (Y. Liu & J.P. Kociolek) Kulikovskiy, Glushchenko & Kociolek, 2020
- Species Psammothidium guangzhouae (Y. Liu et J.P. Kociolek) Kulikovskiy, Glushchenko et Kociolek in Kulikovskiy et al., 2020
- Species Psammothidium hainanii Kociolek & Liu, 2014
- Species Psammothidium harveyi (Reimer) M.Potapova, 2012
- Species Psammothidium helveticum (Hustedt) L.N.Bukhtiyarova & Round, 1996
- Species Psammothidium hodgsonii Van de Vijver & Verleyen in Van de Vijver, 2019
- Species Psammothidium hustedtii (Krasske) Mayama, 2002 accepted as Cocconeis hustedtii Krasske, 1923
- Species Psammothidium incognitum (Krasske) Van de Vijver, 2002
- Species Psammothidium investians (J.R.Carter) L.Bukhtiyarova, 1996
- Species Psammothidium kryophilum (Petersen) E. Reichardt, 2004 accepted as Achnanthes kryophila var. kryophila J.B.Petersen, 1924
- Species Psammothidium kuelbsii (Lange-Bertalot) L.Bukhtiyarova & F.E.Round, 1996 accepted as Achnanthes kuelbsii Lange-Bertalot, 1989
- Species Psammothidium lacustre M.D.Enache & M.Potapova, 2013
- Species Psammothidium lacus-vulcani (Lange-Bertalot & Krammer) Bukhtiyarova in Bukhtiyarova & Roun, 1996
- Species Psammothidium lauenburgianum (Hustedt) Bukhtiyarova & Round, 1996 accepted as Achnanthes lauenburgiana Hustedt, 1950
- Species Psammothidium levanderi (Hustedt) L.Bukhtiyarova & Round, 1996 accepted as Achnanthes levanderi var. levanderi Hustedt, 1933
- Species Psammothidium manguinii (Hustedt) Van de Vijver, 2002
- Species Psammothidium mannensianum Van de Vijver, 2019
- Species Psammothidium marginulatum (Grunow) L.Bukhtiyarova & Round, 1996 accepted as Achnanthes marginulata var. marginulata Grunow in Cleve & Grunow, 1880
- Species Psammothidium metakryophilum (Lange-Bertalot & Schmidt) K. Sabbe, 2003 accepted as Achnanthes metakryophila Lange-Bertalot & Schmidt, 1990
- Species Psammothidium microscopicum (Cholnoky) S. Blanco, 2016
- Species Psammothidium montanum (Krasske) Mayuma, 2002 accepted as Achnanthes montana var. montana Krasske, 1929
- Species Psammothidium nivale M.Potapova & M.D.Enache, 2013
- Species Psammothidium obliquum (W. Gregory, 1856) Potapova, 2018 accepted as Gololobovia obliqua (W.Gregory) Kulikovskiy, Glushchenko & Kociolek in Kulikovskiy et al., 2020
- Species Psammothidium oblongellum (Østrup) Van de Vijver, 2002
- Species Psammothidium onufrii Potapova, 2018
- Species Psammothidium pennsylvanicum M.Potapova, 2012
- Species Psammothidium perpusillum (Østrup) Lange-Bertalot, 1999 accepted as Pinnularia perpusilla Østrup, 1910
- Species Psammothidium pseudoinvestians R.J. Flower, 2005
- Species Psammothidium pseudoswazi (J.R.Carter) L.Bukhtiyarova & Round, 1996
- Species Psammothidium punctulatum (Simonsen) L.Bukhtiyarova & Round, 1996
- Species Psammothidium rechtense (Leclercq) Lange-Bertalot, 1999 accepted as Achnanthes rechtensis Leclercq, 1983
- Species Psammothidium reversum (Lange-Bertalot & Krammer) L.Bukhtiyarova & Round, 1996
- Species Psammothidium rosenstockii (Lange-Bertalot) Lange-Bertalot, 1999 accepted as Achnanthes rosenstockii Lange-Bertalot, 1989
- Species Psammothidium rossii (Hustedt) L.Bukhtiyarova & Round, 1996 accepted as Achnanthes rossii Hustedt, 1954
- Species Psammothidium rostrogermainii Van de Vijver, Kopalova & Zidarova, 2016
- Species Psammothidium sacculum (J.R.Carter) L.Bukhtiyarova, 1996
- Species Psammothidium scoticum (R.J.Flower & V.J.Jones) L.Bukhtiyarova & Round, 1996 accepted as Achnanthes scotica R.J.Flower & V.J.Jones, 1989
- Species Psammothidium semiapertum (Hustedt) M.Aboal, 2003 accepted as Cocconeis semiaperta Hustedt, 1945
- Species Psammothidium stauroneioidum (Bourrelly & Manguin) L.Bukhtiyarova, 1996 accepted as Achnanthes stauroneioides Manguin in Bourrelly & Manguin, 1954
- Species Psammothidium strelnikovae M.Potapova, 2014
- Species Psammothidium strenzkei (Hustedt) L.Bukhtiyarova, 1996 accepted as Navicula strenzkei Hustedt, 1962
- Species Psammothidium subatomoides (Hustedt) L.Bukhtiyarova & Round, 1996 accepted as Navicula subatomoides Hustedt, 1936
- Species Psammothidium subsalsum (J.B.Petersen) Kulikowskiy, Witkowski & Pliński, 2011
- Species Psammothidium therezienii (Le Cohu & Maillard) Van de Vijver, 2002
- Species Psammothidium toroi Blanco et al., 2017
- Species Psammothidium uniseriataum (Lange-Bertalot & Monnier) Kulikovskiy, Glushchenko & Kociolek, 2020
- Species Psammothidium ventralis (Krasske) Bukhtiyarova & Round, 1996
- Species Psammothidium vernadskyi L.N.Bukhtiyarova & E.V.Stanislavskaya, 2013
- Genus Pseudachnanthidium Riaux-Gobin in Riaux-Gobin & Witkowski, 2015 (1)
- Genus Rossithidium F.E. Round & L. Bukhtiyarova, 1996 (3)
- Genus Skabitschewskia Kulikovskiy & Lange-Bertalot, 2015 (24)
- Genus Xenobennettella Witkowski & Riaux-Gobin in Witkowski et al., 2022 (1)
- Family Cocconeidaceae Kützing, 1844 (83)
- Order Bacillariales (357)
- Order Cymbellales (792)
- Order Dictyoneidales
- Order Lyrellales (15)
- Order Mastogloiales (88)
- Order Naviculales (2 077)
- Order Rhopalodiales (37)
- Order Surirellales (174)
- Order Thalassiophysales (105)
- Superorder Bacillariophycidae incertae sedis (32)
- Superorder Eunotiophycanae (293)
- Subclass Coscinodiscophycidae (877)
- Subclass Fragilariophycidae (483)
- Order Centrales
