Hystrichosphaeridium eisenackii
From dinoflaj2
"eisenackii" Sannemann, 1955, p.327-328, pl.4, figs.10,12; text-figs.8a-d. Holotype: Sannemann, 1955, pl.4, fig.10. NOW Multiplicisphaeridium (Appendix A). Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly (and now) Multiplicisphaeridium (Appendix A). Age: Devonian (Late Givetian).
Parent: Hystrichosphaeridium