Palaeoperidinium oleinikii

"oleinikii" Lentin and Williams, 1981, p.211.  Holotype: Oleinik, 1975, pl.1, fig.3.  Name illegitimate — nomenclatural senior synonym: Palaeoperidinium granulatum Oleinik, which has the same type.  NOW Palaeoperidinium granulatum Oleinik.  Originally Pentagonum granulatum (generic name illegitimate), subsequently (and now) Palaeoperidinium granulatum Oleinik, thirdly Palaeoperidinium oleinikii (name illegitimate).  Substitute name for Palaeoperidinium granulatum (Oleinik, 1975, p.225–226, pl.1, figs.3–5), Lentin and Williams, 1981, p.211.  See discussion under Palaeoperidinium granulatum Oleinik.  Age: late Eocene.

Parent: Palaeoperidinium