Pentagonum granulatum Oleinik, 1975

Now Palaeoperidinium oleinikii. Originally Pentagonum granulatum (name illegitimate), subsequently (and now) Palaeoperidinium oleinikii; see also Palaeoperidinium granulatum (name illegitimate). The species name Pentagonum granulatum is validly published even though the generic name Pentagonum is illegitimate; see I.C.B.N. Article 68.1.

Holotype: Oleinik, 1975, pl.1, fig.3
Age: Late Eocene