Pentagonum granulatum

"granulatum" Oleinik, 1975, p.225–226, pl.1, figs.3–5.  Holotype: Oleinik, 1975, pl.1, fig.3.  NOW Palaeoperidinium granulatum Oleinik.  Originally Pentagonum granulatum (generic name illegitimate), subsequently (and now) Palaeoperidinium granulatum Oleinik, thirdly Palaeoperidinium oleinikii (name illegitimate).  Following I.C.N. Article 55.1, the species name Pentagonum granulatum is validly published even though the generic name Pentagonum is illegitimate.  Age: late Eocene.

Parent: Pentagonum_Vozzhennikova 1963