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Appendix A

Baltisphaeridium polytrichum

"Baltisphaeridium polytrichum" (Valensi, 1947, p.818; text-fig.4) Downie and Sarjeant, 1965, p.95.

TYPE: Holotype: Valensi, 1947, text-fig.4.

HISTORY: NOW: Impletosphaeridium. Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly Cleistosphaeridium, fourthly (and now) Impletosphaeridium.

COMMENTS: This combination was not validly published in Sarjeant (1959, p.339 and 1962, p.487), since that author did not fully reference the basionym.

AGE: Late Bajocian.


Infraspecific taxa:


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