Conosphaeridium striatoconum
From dinoflaj3
*striatoconum (Deflandre and Cookson, 1955, p.275, pl.2, fig.10; text-fig.36) Cookson and Eisenack, 1969, p.5. Holotype: Deflandre and Cookson, 1955; text-fig.36. Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly Litosphaeridium?, fourthly (and now) Conosphaeridium. Age: middle Senonian.
