Ovum hispidum subsp. castanea Appendix A

"subsp. castanea" Eisenack, 1934, p.71, pl.5, fig.32.  Holotype: Eisenack, 1934, pl.5, fig.32.  Name not validly published: specific name not validly published.  NOW Baltisphaeridium castanea (Appendix A).  Originally Ovum hispidum subsp. castanea (name not validly published), subsequently Hystrichosphaeridium castanea, thirdly (and now) Baltisphaeridium castanea (Appendix A).  N.I.A.  Age: Silurian.

Parent: Ovum hispidum_Appendix A