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Appendix A

Ammonidium microfurcatum

Ammonidium microfurcatum (Deunff, 1957, p.6, fig.2 - p.13; fig.3 - p.14) Fensome et al., 1990, p.59.

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

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

COMMENTS: This combination was not validly published in T.R. Lister (1970, p.49) since that author did not clearly use the name Ammonidium microfurcatum.

AGE: Mid Devonian.


Infraspecific taxa:


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