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Appendix A

Baltisphaeridium biformoides

"Baltisphaeridium biformoides" (Eisenack, 1954b, p.68-69, pl.11, figs.16-20) Downie and Sarjeant, 1965, p.87.

TYPE: Holotype: Eisenack, 1954b, pl.11, fig.18.

HISTORY: NOW: Achilleodinium. Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly Hystrichokolpoma, fourthly (and now) Achilleodinium, fifthly Florentinia.

COMMENTS: This combination was not validly published in Downie and Sarjeant (1963, p.91), since these authors did not fully reference the basionym.

AGE: Late Eocene-Early Oligocene.


Infraspecific taxa:


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