Hystrichosphaeridium longofilum
From dinoflaj2
"longofilum" Maier, 1959, p.317, pl.32, fig.7. Holotype: Maier, 1959, pl.32, fig.7. NOW Baltisphaeridium (Appendix A). Originally Hystrichosphaeridium, subsequently (and now) Baltisphaeridium (Appendix A). Age: mid Oligocene.
Parent: Hystrichosphaeridium
