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Appendix A

Baltisphaeridium oligacanthum subsp. granulatum

"Baltisphaeridium oligacanthum subsp. granulatum" (W. Wetzel, 1952, p.404; text-fig.25) Downie and Sarjeant, 1965, p.93.

EMENDATION: Sarjeant, 1984c, p.136, as Surculosphaeridium? granulatum.

TYPE: Holotype: W. Wetzel, 1952, text-fig.25; Sarjeant, 1984c, pl.5, figs.1-3; text-fig.8.

HISTORY: NOW: Surculosphaeridium? granulatum. Originally Hystrichosphaeridium oligacanthum subsp. granulatum, subsequently Baltisphaeridium oligacanthum subsp. granulatum, thirdly Cleistosphaeridium? oligacanthum subsp. granulatum, fourthly (and now) Surculosphaeridium? granulatum.

AGE: Paleocene.


Infraspecific taxa:


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