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Aulacoseirales
Aulacoseirales is an order of diatoms belonging to the class Bacillariophyceae. The order consists only one family: Aulacoseiraceae. Genera Genera: * '' Alveolophora'' A.I.Moisseeva & T.L.Nevretdinova, 1990 * ''Aulacoseira'' G.H.K.Thwaites, 1848 * †''Eoseira ''Eoseira'' is an extinct genus of diatoms belonging to the family Aulacoseiraceae and containing the single species ''Eoseira wilsonii''. The species is dated to the Early Eocenes Ypresian stage and have only been found at the type locality in ...'' A.P.Wolfe & M.B.Edlund, 2005 * '' Pseudoaulacosira'' G.Lupikina & G.K.Khursevich, 1991 * '' Strangulonema'' R.K.Greville, 1865 References {{Taxonbar, from=Q18645922 Bacillariophyceae Diatom orders ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 reflects that used by Algaebase as at 2015, and is also reflected in the current (mid 2020) treatment used iDiatomBase the World Register of Marine Species (WoRMS) of which DiatomBase is a part, and the Catalogue of Life. 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 (2k) * Lyrellales (38) * Mastogloiales (825) * Naviculales (18k) * Rhopalodiales (527) * Surirellales (2k) * Thalassiophysales (1k) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diatom
A diatom (Neo-Latin ''diatoma''), "a cutting through, a severance", from el, διάτομος, diátomos, "cut in half, divided equally" from el, διατέμνω, diatémno, "to cut in twain". is any member of a large group comprising several genera of algae, specifically microalgae, found in the oceans, waterways and soils of the world. Living diatoms make up a significant portion of the Earth's biomass: they generate about 20 to 50 percent of the oxygen produced on the planet each year, take in over 6.7 billion metric tons of silicon each year from the waters in which they live, and constitute nearly half of the organic material found in the oceans. The shells of dead diatoms can reach as much as a half-mile (800 m) deep on the ocean floor, and the entire Amazon basin is fertilized annually by 27 million tons of diatom shell dust transported by transatlantic winds from the African Sahara, much of it from the Bodélé Depression, which was once made up of a system of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aulacoseira
''Aulacoseira'' is a genus of diatoms belonging to the family Aulacoseiraceae Aulacoseirales is an order of diatoms belonging to the class Bacillariophyceae. The order consists only one family: Aulacoseiraceae. Genera Genera: * '' Alveolophora'' A.I.Moisseeva & T.L.Nevretdinova, 1990 * '' Aulacoseira'' G.H.K.Thwaites, 1 .... The genus has cosmopolitan distribution. Species: *'' Aulacoseira accincta'' *'' Aulacoseira acicularia'' *'' Aulacoseira aculeifera'' *'' Aulacoseira granulata'' References {{Taxonbar, from=Q771551 Diatoms Diatom genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eoseira
''Eoseira'' is an extinct genus of diatoms belonging to the family Aulacoseiraceae and containing the single species ''Eoseira wilsonii''. The species is dated to the Early Eocenes Ypresian stage and have only been found at the type locality in east central British Columbia. Distribution and paleoecology ''Eoseira wilsonii'' was an algal bloom forming diatom during the Early Eocene Climatic Optimum and one of the major lake components the Horsefly Shales lake system. The horsefly shales have not been radiometrically dated, but based on shared floral and faunal taxa found in other Early Eocene, Ypresian, age Okanagan Highlands sites, Horsefly is assumed to be contemporaneous. The polysaccharide slime grown by ''E. wilsonii'' is suggested to have enhanced the preservation quality of organisms which were coated by the slime films before entombment in the lake sediments. The horsefly lake system has been interpreted as monomictic to possibly meromictic. If the lake was monomict ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
