Baltisphaeridium tschunense Appendix A
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tschunense (Timofeev, 1962, caption to pl.11, fig.1) Downie and Sarjeant, 1965, p.98. Holotype: Timofeev, 1962, pl.11, fig.1. Originally Hystrichosphaeridium, subsequently (and now) Baltisphaeridium. Age: Mid Ordovician.
Parent: Baltisphaeridium
