Back
Polysphaeridium fluctuans
Polysphaeridium "?fluctuans" (Eisenack, 1938c, p.230–231, pl.16, figs.1–3) Davey and Williams, 1966b, p.95.
Name not validly published: basionym not fully referenced. NOW Baltisphaeridium (Appendix A). Originally Bion (Appendix A), subsequently Hystrichosphaeridium, thirdly Polysphaeridium? (combination not validly published), fourthly (and now) Baltisphaeridium (Appendix A). Questionable assignment: Davey and Williams (1966b, p.95).
Holotype: Eisenack, 1938c, pl.16, fig.3.
Age: Silurian.
Name not validly published: basionym not fully referenced. NOW Baltisphaeridium (Appendix A). Originally Bion (Appendix A), subsequently Hystrichosphaeridium, thirdly Polysphaeridium? (combination not validly published), fourthly (and now) Baltisphaeridium (Appendix A). Questionable assignment: Davey and Williams (1966b, p.95).
Holotype: Eisenack, 1938c, pl.16, fig.3.
Age: Silurian.