Operculodinium hirsutum ssp. varians (O. Wetzel, 1933) Lentin and Williams, 1973

Now Coronifera? striolata ssp. varians. Originally Hystrichosphaera hirsuta ssp. varians (name not validly published), subsequently Baltisphaeridium hirsutum forma varians (name not validly published), thirdly Operculodinium? hirsutum ssp. varians (name not validly published), fourthly (and now) Coronifera? striolata ssp. varians.

Holotype: not designated
Lectotype: O. Wetzel, 1933, fig.29 (designated by Lentin and Williams, 1989)
Age: Late Cretaceous