From Fensome et al., 2019:
Florentinia flosculus (Deflandre, 1937b, p.75, pl.15 [also labelled pl.12], figs.5–6) Lentin and Williams, 1981, p.104. Holotype: Deflandre, 1937b, pl.15 (also labelled pl.12), fig.5. Originally Hystrichosphaeridium, subsequently Baltisphaeridium (combination not validly published; Appendix A), thirdly Litosphaeridium?, fourthly Silicisphaera?, fifthly (and now) Florentinia?. Questionable assignment: Lentin and Williams (1981, p.104). Taxonomic junior synonym: Eurysphaeridium fibratum (name not validly published), according to Slimani (2001a, p.192). See also Areoligera tenuicapillata subsp. pinopollina. NIA. Age: Senonian.

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