Hystrichosphaeridium setigerfurcatum
From dinoflaj2
"setigerfurcatum" Timofeev, 1959, p.52-53, pl.4, fig.6. Holotype: Timofeev, 1959, pl.4, fig.6. NOW Baltisphaeridium (Appendix A). Originally Hystrichosphaeridium, subsequently (and now) Baltisphaeridium (Appendix A), thirdly Archaeohystrichosphaeridium (combination not validly published; Appendix A). Age: Early Ordovician.
Parent: Hystrichosphaeridium