Solisphaeridium seminudum Appendix A

"?seminudum" (Wetzel, 1952, p.405, text-fig.26) Sarjeant, 1984a, p.143.  Holotype: Wetzel, 1952, text-fig.26.  NOW Micrhystridium? (Appendix A).  Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly Solisphaeridium, fourthly (and now) Micrhystridium (Appendix A).  Questionable assignment: Sarjeant (1984a, p.143).  Age: Paleocene (Danian).

Parent: Solisphaeridium_Appendix A