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Appendix A

Baltisphaeridium palmatum

"Baltisphaeridium palmatum" (Deflandre and Courteville, 1939, p.101, pl.3, fig.1) Downie and Sarjeant, 1965, p.93.

TYPE: Holotype: Deflandre and Courteville, 1939, pl.3, fig.1.

HISTORY: Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly Exochosphaeridium, fourthly Exochosphaeridium?.

SYNONYM(S): Taxonomic senior synonym: Hystrichosphaeridium (now Pervosphaeridium) pseudhystrichodinium Deflandre, 1937b, according to Yun Hyesu (1981, p.29).

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 Cretaceous.


Infraspecific taxa:


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