Operculodinium ornamentum
From dinoflaj3
ornamentum (Jain and Tandon, 1981, p.12–13, pl.2, fig.35) Jain and Garg, 1991, p.80–81. Holotype: Jain and Tandon, 1981, pl.2, fig.35. Originally Polysphaeridium, subsequently (and now) Operculodinium. Age: middle Eocene.
Parent: Operculodinium