Bacillariophyceae is a group of
pennate diatoms with a raphe (raphids). According to Ruggiero et al., 2015,
the diatoms are treated as follows. This treatment largely reflects that used by
Algaebase
AlgaeBase is a global species database of information on all groups of algae, both marine and freshwater, as well as sea-grass.
History
AlgaeBase began in March 1996, founded by Michael Guiry. Text was copied from this source, which is avail ...
as at 2015, and is also reflected in the current (mid 2020) treatment used i
DiatomBase the
World Register of Marine Species
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms.
Content
The content of the registry is edited and maintained by scientific specialis ...
(WoRMS) of which DiatomBase is a part, and the
Catalogue of Life
The Catalogue of Life is an online database that provides an index of known species of animals, plants, fungi, and microorganisms. It was created in 2001 as a partnership between the global Species 2000 and the American Integrated Taxonomic I ...
. This treatment is identical to that of Round et al., 1990, except that all diatoms are treated as a single class, Round et al.'s classes are reduced to subclasses, and the latter's original subclasses are omitted.
It has 3 subclasses, ''
Bacillariophycidae'', ''
Coscinodiscophycidae'' and ''
Fragilariophycidae''
Subclass Bacillariophycidae
Contains the following
orders;
*
Achnanthales (2k)
*
Bacillariales (3k)
*
Cymbellales (4k)
*
Dictyoneidales (17)
*
Eunotiales
Eunotiales is an order of diatoms, which belongs to Subclass ''Eunotiophycidae'' .
References
External links
''Eunotiales''at WoRMS
Diatom orders
{{diatom-stub ...
(2k)
*
Lyrellales (38)
*
Mastogloiales (825)
*
Naviculales (18k)
*
Rhopalodiales (527)
*
Surirellales (2k)
*
Thalassiophysales (1k)
Figures in brackets are approx. how many species per order.
Subclass Coscinodiscophycidae
Contains the following orders;
*
Anaulales (99)
*
Arachnoidiscales (83)
*
Asterolamprales (252)
*
Aulacoseirales (184)
*
Biddulphiales (826)
*
Chaetocerotales (2k)
*
Chrysanthemodiscales - (monotypic) ''Chrysanthemodisccaceae'', ''
Chrysanthemodiscus floriatus''
*
Corethrales (21)
*
Coscinodiscales (2k)
*
Cymatosirales (168)
*
Ethmodiscales (28)
*
Hemiaulales (524)
*
Leptocylindrales (13)
*
Lithodesmiales (153)
*
Melosirales (1k)
*
Orthoseirales (53)
*
Paraliales (66)
*
Rhizosoleniales (487)
*
Stictocyclales - ''Stictocyclaceae'', ''
Stictocyclus varicus''
*
Stictodiscales (200)
*
Thalassiosirales (1k)
*
Triceratiales (2k)
Figures in brackets are approx. how many species per order.
[
]
Subclass Fragilariophycidae
Contains the following orders;
* Ardissoneales (12)
* Fragilariophycidae
* Climacospheniales (29)
* Cyclophorales (59)
* Fragilariales (3k)
* Licmophorales (323)
* Protoraphidales (13)
* Rhabdonematales (66)
* Rhaphoneidales (325)
* Striatellales (323)
* Tabellariales (222)
* Thalassionematales (67)
* Toxariales (9)
Figures in brackets are approx. how many species per order.[
The GBIF also has the following unplaced orders; Centrales, Chaetocerales, Rhaphoneidales,
]
References
{{Taxonbar, from1=Q2878349
Algae classes
Heterokont classes