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Appendix A

Baltisphaeridium borracherosum

"Baltisphaeridium borracherosum" Cramer, 1964, p.289, pl.1, fig.11; text-fig.16, no.6.

TYPE: Holotype: Cramer, 1964, pl.1, fig.11.

HISTORY: NOW: Petaloferidium (Appendix A). Originally Baltisphaeridium, subsequently Multiplicisphaeridium (Appendix A), thirdly Hystrichosphaeridium (combination not validly published), fourthly (and now) Petaloferidium (Appendix A).

AGE: Silurian (Ludlow).


Infraspecific taxa:


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