Achomosphaera heterostyla
From dinoflaj3
heterostyla (Heisecke, 1970, p.238,240, pl.5, figs.1–4; pl.6, figs.4–5) Stover and Evitt, 1978, p.138. Holotype: Heisecke, 1970, pl.5, figs.3–4; pl.6, fig.4. Originally Hystrichosphaera, subsequently Spiniferites, thirdly (and now) Achomosphaera. Age: Danian.
Parent: Achomosphaera