Volkheimeridium irmoechinatum

"?irmoechinatum" (Heisecke, 1970, p.230, pl.1, fig.3; pl.2, figs.2–3) Quattrocchio and Sarjeant, 2003, p138.  Holotype: Heisecke, 1970, pl.1, fig.3; pl.2, figs.2–3.  NOW Spinidinium? Originally Deflandrea, subsequently Gonyaulacysta, thirdly (and now) Spinidinium?, fourthly ?Volkheimeridium.  Questionable assignment: Quattrocchio and Sarjeant (2003, p.138).  Age: early Paleocene.

Parent: Volkheimeridium