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Appendix A

Baltisphaeridium tschunense

Baltisphaeridium tschunense (Timofeev, 1962, caption to pl.11, fig.1) Downie and Sarjeant, 1965, p.98.

TYPE: Holotype: Timofeev, 1962, pl.11, fig.1.

HISTORY: Originally Hystrichosphaeridium, subsequently (and now) Baltisphaeridium.

AGE: Mid Ordovician.


Infraspecific taxa:


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