Hystrichosphaeridium eisenackianum

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"eisenackianum" Deunff, 1959, p.23–24, pl.2, figs.26,30–31.  Holotype: Deunff, 1959, pl.2, fig.26.  NOW Baltisphaeridium (Appendix A).  Originally Hystrichosphaeridium, subsequently (and now) Baltisphaeridium (Appendix A).  Age: Middle Ordovician.

Parent: Hystrichosphaeridium

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