Deunffia monacantha Appendix A
From dinoflaj2
monacantha (Deunff, 1951, p.323; text-fig.4) Downie, 1960, p.198. Holotype: Deunff, 1951, text-fig.4. Originally Hystrichosphaeridium, subsequently Veryhachium (combination not validly published, Appendix A), thirdly (and now) Deunffia. Cramer and Diez (1979, p.47) considered this species to be a possible taxonomic junior synonym of Hystrichosphaeridium (now Veryhachium) trispinosum or Veryhachium trisulcum (Appendix A). Age: Mid Ordovician.
Parent: Deunffia
