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Appendix A

Multiplicisphaeridium borracherosum

"Multiplicisphaeridium borracherosum" (Cramer, 1964, p.289, pl.1, fig.11; text-fig.16, no.6) Eisenack et al., 1973, p.543-544.

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

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

COMMENTS: This combination was not validly published in T.R. Lister (1970, p.84) since that author did not clearly use the name Multiplicisphaeridium borracherosum.

AGE: Silurian (Ludlow).


Infraspecific taxa:


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