Back
Ammonidium lewisii
Ammonidium lewisii, (Deunff, 1954), Lister, 1970
Combination not validly published since Lister, 1970 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.
Combination not validly published since Lister, 1970 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.