"Hystrichosphaera heterostyla" Heisecke, 1970, p.238,240, pl.5, figs.1-4; pl.6, figs.4-5.
TYPE: Holotype: Heisecke, 1970, pl.5, figs.3-4; pl.6, fig.4. HISTORY: NOW: Achomosphaera. Originally Hystrichosphaera, subsequently Spiniferites, thirdly (and now) Achomosphaera. AGE: Danian.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |