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Appendix A

Gorgonisphaeridium lewisii

Gorgonisphaeridium lewisii (Deunff, 1954a, p.240, fig.3) Sarjeant and Vavrdova, 1997, p.24.

TYPE: Holotype: Deunff, 1954a, fig.3.

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

AGE: Mid Devonian.


Infraspecific taxa:


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