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Appendix A

Baltisphaeridium dictyophorum

"Baltisphaeridium dictyophorum" (Cookson and Eisenack, 1958, p.44, pl.11, fig.14) Downie and Sarjeant, 1965, p.89.

TYPE: Holotype: Cookson and Eisenack, 1958, pl.11, fig.14; Fensome et al., 1993a, fig.1 - p.1125.

HISTORY: NOW: Stiphrosphaeridium. Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly Oligosphaeridium, fourthly (and now) Stiphrosphaeridium.

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 Jurassic.


Infraspecific taxa:


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