Coscinodiscophycidae or Coscinodiscineae is a grouping of
Coscinodiscophyceae, previously known as "Centrales", a
paraphyletic
In taxonomy (general), taxonomy, a group is paraphyletic if it consists of the group's most recent common ancestor, last common ancestor and most of its descendants, excluding a few Monophyly, monophyletic subgroups. The group is said to be pa ...
order of centric
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 sev ...
s, a major group of algae and one of the most common members of the
phytoplankton
Phytoplankton () are the autotrophic (self-feeding) components of the plankton community and a key part of ocean and freshwater ecosystems. The name comes from the Greek words (), meaning 'plant', and (), meaning 'wanderer' or 'drifter'.
Ph ...
.
Description
Valves generally have a marginal ring of processes. They usually have symmetry with no polarities.
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See also
* Biddulphiineae
References
Coscinodiscophyceae
SAR supergroup suborders
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