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Authority

(Ostenfeld) Balech, 1973, pg. 365

Class

Dinophyceae

 

Order

Peridinales

Family

Protoperidiniaceae

Basionym

Peridinium pallidum Ostenfeld, 1899 [10]:60

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Description

After Balech, 1973: Cells pentagonal-shaped, 83-95 µm long (excluding horns), 95-100 µm total length, 74-85 µm diameter. Thecae with small pores or reticulations. Epitheca conical tapering to short antapical horn; hypotheca trapezoid in dorsal view, with two short divergent, winged spines. Cingulum offset by 1 cingulum width, non incised, cingular lists well developed and densely ribbed. Sulcus broad, sometimes extending slightly into epitheca; sulcal lists narrow. Plate configuration: paraform, hexa.