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Hystrichosphaeridium microfurcatum

"Hystrichosphaeridium microfurcatum" Deunff, 1957, p.6, fig.2 - p.13; fig.3 - p.14.

TYPE: Holotype: Deunff, 1957, fig.2 - p.13.

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

AGE: Mid Devonian.


Infraspecific taxa:


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