Operculodinium erinaceum

erinaceum (Morgenroth, 1966a, p.33–34, pl.8, figs.10–12) Stover and Evitt, 1978, p.178.  Holotype: Morgenroth, 1966a, pl.8, fig.10.  Originally Impletosphaeridium, subsequently (and now) Operculodinium.  Age: early Eocene.

Parent: Operculodinium