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