Spaulding, S.,
Edlund, M.
(2008).
Pliocaenicus.
In Diatoms of North America.
Retrieved February 06, 2025, from https://oldcraft3.diatoms.org/genera/pliocaenicus
Centric
Pliocaenicus
Valve face transversely undulate
Rows of areolae radiate from valve center
Valve face with central fultoportulae
The valve face of Pliocaenicus has a distinct transverse undulation. Areolae radiate from the valve center in single rows, rather than being organized into groups, or fascicles. A number of fultoportulae are positioned at the center of valve face. Marginal fultoportulae are present between the striae, near the valve/mantle interface....