Hystrichosphaera porosa

"porosa" Manum and Cookson, 1964, p.11–12, pl.2, figs.1–5; text-fig.2.  Holotype: Manum and Cookson, 1964, pl.2, figs.2–3; text-fig.2.  NOW Spiniferites.  Originally Hystrichosphaera, subsequently (and now) Spiniferites.  Age: Late Cretaceous.

Parent: Hystrichosphaera