Hystrichosphaeridium stimuliferum
From dinoflaj3
"stimuliferum" Deflandre, 1939a, p.192, pl.10, fig.10. Holotype: Deflandre, 1939a, pl.10, fig.10. NOW Solisphaeridium (Appendix A). Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly (and now) Solisphaeridium (Appendix A), fourthly Filisphaeridium (combination not validly published; Appendix A), fifthly Micrhystridium (Appendix A). Age: Late Jurassic.
Parent: Hystrichosphaeridium