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Hystrichosphaeridium diploporum

"Hystrichosphaeridium diploporum" Eisenack, 1951, p.190-191, pl.2, fig.6.

TYPE: Holotype: Eisenack, 1951, pl.2, fig.6.

HISTORY: NOW: Baltisphaeridium (Appendix A). Originally Hystrichosphaeridium, subsequently Micrhystridium (name not validly published; Appendix A), thirdly (and now) Baltisphaeridium (Appendix A).

AGE: Ordovician (erratic).


Infraspecific taxa:


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