Hystrichosphaera heterostyla

"heterostyla" Heisecke, 1970, p.238,240, pl.5, figs.1–4; pl.6, figs.4–5. Holotype: Heisecke, 1970, pl.5, figs.3–4; pl.6, fig.4. NOW Achomosphaera. Originally Hystrichosphaera, subsequently Spiniferites, thirdly (and now) Achomosphaera. Age: Danian.