Achilleodinium biformoides
From dinoflaj3
*biformoides (Eisenack, 1954b, p.68, pl.11, figs.16–20) Eaton, 1976, p.234. Holotype: Eisenack, 1954b, pl.11, fig.18. Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly Hystrichokolpoma, fourthly (and now) Achilleodinium, fifthly Florentinia. Lentin and Williams (1981, p.2) retained this species in Achilleodinium. Age: late Eocene–early Oligocene.
