Ammonidium lewisii Appendix A
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"lewisii" (Deunff, 1954a, p.240, fig.3) Lister, 1970, p.49. Holotype: Deunff, 1954a, fig.3. Combination not validly published: Lister (1970, p.49) did not clearly use the name Ammonidium lewisii. NOW Gorgonisphaeridium? (Appendix A). Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly Ammonidium (combination not validly published), fourthly Multiplicisphaeridium (Appendix A), fifthly (and now) Gorgonisphaeridium? (Appendix A). Age: Mid Devonian.
Parent: Ammonidium
