Amiculosphaera umbraculum
From dinoflaj3
*umbraculum Harland, 1979b, p.535, pl.1, figs.11–14,22–23; pl.2, figs.1–3. Holotype: Harland, 1979b, pl.2, figs.1–3; Fensome et al., 1995, figs.1–3 — p.1857. N.I.A. Age: middle Miocene–Pleistocene.