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Hystrichosphaeridium pseudhystrichodinium

"Hystrichosphaeridium pseudhystrichodinium" Deflandre, 1937b, p.73, pl.15 (al. pl.12), figs.3-4.

EMENDATION: Davey, 1969a, p.163, as Exochosphaeridium pseudhystrichodinium.

TYPE: Holotype: Deflandre, 1937b, pl.15 (al. pl.12), fig.3; Eisenack and Kjellström, 1972, p.415; Fensome et al., 1995, fig.1 - p.1705.

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

SYNONYM(S): Taxonomic junior synonym: Hystrichosphaeridium (as Exochosphaeridium?) palmatum Deflandre and Courteville, according to Yun Hyesu (1981, p.29).

AGE: Late Cretaceous.


Infraspecific taxa:


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