Hystrichosphaeridium divergens
From dinoflaj2
"divergens" Eisenack, 1954b, p.67, pl.9, figs.13-16. Holotype: Eisenack, 1954b, pl.9, fig.14. NOW Operculodinium. Originally Hystrichosphaeridium, subsequently Baltisphaeridium (combination not validly published; Appendix A), thirdly Cordosphaeridium, fourthly (and now) Operculodinium. Age: Early Oxfordian.
Parent: Hystrichosphaeridium
