Operculodinium? spiniferum Cookson and Eisenack, 1982

Originally Operculodinium, subsequently (and now) Operculodinium?.
Questionable assignment: Lentin and Williams (1985, p.262).
Junior homonym: Operculodinium spiniferum de Coninck, 1986b.

Holotype: Cookson and Eisenack, 1982, pl.4, fig.21
Age: Senonian