Hystrichosphaeridium tshunense

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"tshunense" Timofeev, 1962 - caption to pl.11, fig.1.  Holotype: Timofeev, 1962 pl.11, fig.1.  NOW Baltisphaeridium (Appendix A).  Originally Hystrichosphaeridium, subsequently (and now) Baltisphaeridium (Appendix A).  Age: Mid Ordovician.

Parent: Hystrichosphaeridium