Operculodinium hirsutum subsp. varians

"subsp. varians" (Wetzel, 1933b, p.47–48, pl.4, figs.27–29) Lentin and Williams, 1973, p.102.  Holotype: not designated.  Lectotype: Wetzel, 1933b, fig.29; designated by Lentin and Williams (1989, p.78).  NOW Coronifera? striolata subsp. varians.  Originally Hystrichosphaera hirsuta subsp. varians (name not validly published), subsequently Baltisphaeridium hirsutum forma varians (name not validly published; Appendix A), thirdly Operculodinium? hirsutum subsp. varians (name not validly published), fourthly (and now) Coronifera? striolata subsp. varians.  Age: Late Cretaceous.

Parent: Operculodinium hirsutum