Hystrichosphaeridium hippocrepicum
From dinoflaj3
"hippocrepicum" Timofeev, 1959, p.52, pl.4, fig.2. Holotype: Timofeev, 1959, pl.4, fig.2. NOW Baltisphaeridium (Appendix A). Originally Hystrichosphaeridium, subsequently (and now) Baltisphaeridium (Appendix A). Age: Early Ordovician.
Parent: Hystrichosphaeridium