Operculodinium eisenackii

eisenackii Heilmann-Clausen and Van Simaeys, 2005, p.176–177, pl.8, figs.3–6.  Holotype: Heilmann-Clausen and Van Simaeys, 2005, pl.8, fig.5.  Taxonomic junior synonym (at specific rank): Hystrichosphaeridium divergens forma areolatum, according to Heilmann-Clausen and Van Simaeys (2005, p.176).  Age: middle Eocene.

Parent: Operculodinium