Operculodinium uncinispinosum

uncinispinosum (de Coninck, 1969, p.32-33, pl.9, figs.6-8) Islam, 1983b, p.342.  Holotype: de Coninck, 1969, pl.9, figs.6-8.  Originally Cordosphaeridium, subsequently Cordosphaeridium?, thirdly Cleistosphaeridium, fourthly (and now) Operculodinium.  Age: Early Eocene.

Parent: Operculodinium