Frankovich, T.
(2022).
Coscinodiscus.
In Diatoms of North America.
Retrieved September 07, 2024, from https://diatoms.org/genera/coscinodiscus
Centric
Coscinodiscus
Valves circular
Areolae radiate from central annulus
Areolae loculate
Rimoportulae present
The frustules of extant Coscinodiscus
species are discoid, barrel-shaped, or slightly eccentric in girdle view. Cells occur singly except immediately following division and can be quite large (up to 500 µm in diameter). The valve face is flat or lens-shaped, with radiate areolae that extend from a central annulus. The areolae are...