Silicisphaera "?flosculus" (Deflandre, 1937b, p.75, pl.15 [al. pl.12], figs.5–6) Davey and Verdier, 1976, p.330. Holotype: Deflandre, 1937b, pl.15 (al. pl.12), fig.5. NOW Florentinia?. Originally Hystrichosphaeridium, subsequently Baltisphaeridium (combination not validly published, Appendix A), thirdly Litosphaeridium?, fourthly Silicisphaera?, fifthly (and now) Florentinia?. Questionable assignment: Davey and Verdier (1976, p.330). Taxonomic junior synonym: Eurysphaeridium fibratum (name not validly published), according to Slimani (2001a, p.192). N.I.A. Age: Senonian.