Spinidinium irmoechinatum
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?irmoechinatum (Heisecke, 1970, p.230, pl.1, fig.3; pl.2, figs.2–3) Stover and Evitt, 1978, p.125. Holotype: Heisecke, 1970, pl.1, fig.3; pl.2, figs.2–3. Originally Deflandrea, subsequently Gonyaulacysta, thirdly (and now) Spinidinium?, fourthly Volkheimeridium. Questionable assignment: Stover and Evitt (1978, p.125). Sluijs et al. (2009,p.47) questionably retained this species in Spinidinium. Age: early Paleocene.
Parent: Spinidinium