Gonyaulacysta irmoechinata

"irmoechinata" (Heisecke, 1970, p.230, pl.1, fig.3; pl.2, figs.2–3) Lentin and Williams, 1976, p.41.  Holotype: Heisecke, 1970, pl.1, fig.3; pl.2, figs.2–3.  NOW Spinidinium? Originally Deflandrea, subsequently Gonyaulacysta, thirdly (and now) Spinidinium?, fourthly Volkheimeridium.  Age: early Paleocene.

Parent: Gonyaulacysta