Hystrichosphaeridium oligofurcatum
From dinoflaj2
"oligofurcatum" Eisenack, 1954a, p.208, pl.1, fig.4; text-fig.5. Holotype: Eisenack, 1954a, pl.1, fig.4; text-fig 5. NOW Visbysphaera (Appendix A). Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly (and now) Visbysphaera (Appendix A), fourthly Multiplicisphaeridium (Appendix A). Age: Silurian (Late Llandovery).
Parent: Hystrichosphaeridium
