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Appendix A

Veryhachium monacanthum

"Veryhachium? monacanthum" (Deunff, 1951, p.323; text-fig.4) Deunff, 1954b, p.305-307.

TYPE: Holotype: Deunff, 1951, text-fig.4.

STATUS: Combination not validly published: basionym not fully referenced and name not clearly used.

HISTORY: NOW: Deunffia (Appendix A). Originally Hystrichosphaeridium, subsequently Veryhachium (combination not validly published), thirdly (and now) Deunffia (Appendix A). Questionable assignment: Deunff (1959, p.29).

COMMENTS: This combination was also not validly published in Deunff (1959, p.29) and Cramer (1963, p.215), since these authors did not fully reference the basionym.

AGE: Mid Ordovician.


Infraspecific taxa:


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