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Hystrichosphaeridium palmatum

"Hystrichosphaeridium palmatum" Deflandre and Courteville, 1939, p.101, pl.3, fig.1.

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

HISTORY: Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly Exochosphaeridium, fourthly Exochosphaeridium?.

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

JUNIOR HOMONYM: Hystrichosphaeridium palmatum (White, 1842) Downie and Sarjeant, 1965.

AGE: Late Cretaceous.


Infraspecific taxa:


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DINOFLAJ (c) 1998