Impagidinium aculeatum

aculeatum (Wall, 1967, p.104–105, pl.14, figs.18–19; text-figs.3C–D) Lentin and Williams, 1981, p.153.  Holotype: Wall, 1967, pl.14, fig.18; Jan du Chêne et al., 1986a, pl.53, figs.1–3.  Originally Leptodinium, subsequently (and now) Impagidinium.  Age: Pleistocene–Holocene.

Parent: Impagidinium