Coscinodiscophycidae is a subclass of diatoms, previously known as "Centrales", a paraphyletic order of centric diatoms, a major group of algae and one of the most common members of the phytoplankton.
Families Thalassiossiraceae Melosiraceae Leptocylindraceae Coscinodiscaceae Stellarimaceae Hemidiscaceae Asterolampraceae Heliopeltaceae
Description Valves generally have a marginal ring of processes. They usually have symmetry with no polarities.
See also Biddulphiineae
References