Baltisphaeridium lewisii Appendix A

"lewisii" (Deunff, 1954a, p.240, fig.3) Downie and Sarjeant, 1965, p.92.  Holotype: Deunff, 1954a, fig.3.  NOW Gorgonisphaeridium? (Appendix A).  Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly Ammonidium (combination not validly published, Appendix A), fourthly Multiplicisphaeridium (Appendix A), fifthly (and now) Gorgonisphaeridium? (Appendix A).  This combination was not validly published in Downie and Sarjeant (1963, p.91), since these authors did not fully reference the basionym.  Age: Middle Devonian.

Parent: Baltisphaeridium_Appendix A