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Appendix A

Goniosphaeridium balticum

"Goniosphaeridium balticum" (Eisenack, 1951, p.190, pl.3, figs.10-11) Eisenack, 1969a, p.258.

TYPE: Holotype: Eisenack, 1951, pl.3, fig.10, lost according to Eisenack et al. (1973, p.478).

HISTORY: NOW: Estriastra (Appendix A). Originally Hystrichosphaeridium, subsequently Pulvinosphaeridium (combination not validly published, Appendix A), thirdly Veryhachium (Appendix A), fourthly Goniosphaeridium, fifthly Baltisphaeridium (Appendix A), sixthly (and now) Estriastra (Appendix A). Eisenack et al. (1973, p.477-479) retained this species in Goniosphaeridium.

AGE: Early Ordovician.


Infraspecific taxa:


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