Bion fluctuans Appendix A

"fluctuans" Eisenack, 1938c, p.230–231, pl.16, figs.1–3.  Holotype: Eisenack, 1938c, pl.16, fig.3.  NOW Baltisphaeridium (Appendix A).  Originally Bion, subsequently Hystrichosphaeridium, thirdly Polysphaeridium? (combination not validly published), fourthly (and now) Baltisphaeridium (Appendix A).  Age: Silurian.

Parent: Bion_Appendix A