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Appendix A

Baltisphaeridium gotlandicum

"Baltisphaeridium gotlandicum" (Eisenack, 1954a, p.209, pl.1, fig.5; text-fig.6) Downie and Sarjeant, 1965, p.90.

TYPE: Holotype: Eisenack, 1954a, pl.1, fig.5.

HISTORY: NOW: Visbysphaera (Appendix A). Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly Multiplicisphaeridium (Appendix A), fourthly (and now) Visbysphaera (Appendix A).

SYNONYM(S): Taxonomic junior synonym: Baltisphaeridium peltatum Cramer, 1966, an acritarch species, according to Cramer (1970, p.157).

COMMENTS: This combination was not validly published in Downie and Sarjeant (1963, p.90), since these authors did not fully reference the basionym.

AGE: Silurian (Late Llandovery).


Infraspecific taxa:


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