Bacillariophyceae is a group of
pennate diatom
The order Pennales is a traditional subdivision of the heterokont algae known as diatoms. The order is named for the shape of the cell walls (or valves or frustules) of pennate diatoms, which are elongated in valve view. The valves may be lin ...
s 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 avai ...
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 specialist ...
(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
Coscinodiscophycidae or Coscinodiscineae is a grouping of Coscinodiscophyceae
The Coscinodiscophyceae are a class of diatoms. They are similar to the Centrales, a traditional, paraphyletic subdivision of the heterokont algae known as diatoms. ...
'' and ''
Fragilariophycidae''
Subclass Bacillariophycidae
Contains the following
orders
Order, ORDER or Orders may refer to:
* Categorization, the process in which ideas and objects are recognized, differentiated, and understood
* Heterarchy, a system of organization wherein the elements have the potential to be ranked a number of d ...
;
*
Achnanthales
Achnanthales is an order of diatoms.
References
External links
*
*
*
Diatom orders
{{diatom-stub ...
(2k)
*
Bacillariales (3k)
*
Cymbellales
The Cymbellales are a diatom order in the class Bacillariophyceae. They include the following families
Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other ...
(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
Mastogloiales is an order of algae belonging to the class Bacillariophyceae
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 ...
(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
Aulacoseirales is an order of diatoms belonging to the class Bacillariophyceae
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 larg ...
(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
The Global Biodiversity Information Facility (GBIF) is an international organisation that focuses on making scientific data on biodiversity available via the Internet using web services. The data are provided by many institutions from around the ...
also has the following unplaced orders; Centrales
The Coscinodiscophyceae are a class of diatoms. They are similar to the Centrales, a traditional, paraphyletic subdivision of the heterokont algae known as diatoms. The order is named for the shape of the cell walls (or valves or frustules ...
, Chaetocerales, Rhaphoneidales,
References
{{Taxonbar, from1=Q2878349
Algae classes
Heterokont classes