Impagidinium sphaericum

sphaericum (Wall, 1967, p.108, pl.15, figs.11-15; text-figs.2a-c) Lentin and Williams, 1981, p.154. Holotype: Wall, 1967, pl.15, figs.11-12. Originally Leptodinium, subsequently (and now) Impagidinium. Age: Pleistocene-Holocene.