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Exochosphaeridium palmatum

"Exochosphaeridium? palmatum" (Deflandre and Courteville, 1939, p.101, pl.3, fig.1) Davey et al., 1969, p.16.

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

HISTORY: Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly Exochosphaeridium, fourthly Exochosphaeridium?. Questionable assignment: Stover and Evitt (1978, p.154).

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

COMMENTS: This combination was not validly published in Davey et al. (1966, p.166), since these authors did not fully reference the basionym.

AGE: Late Cretaceous.


Infraspecific taxa:


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