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Microdinium opacum

Microdinium opacum Brideaux, 1971, p.76-77, pl.21, figs.19-22; text-figs.7d-e.

TYPE: Holotype: Brideaux, 1971, pl.21, figs.21-22; text-figs.7d-e.

HISTORY: Originally (and now) Microdinium, subsequently Phanerodinium. Lentin and Williams (1989, p.245) retained this species in Microdinium.

SYNONYM(S): Taxonomic junior synonym: Microdinium spinosum, according to Below (1987b, p.38).

COMMENTS: Below (1987b, p.39) considered Microdinium (as Phanerodinium) distinctum to be the questionable taxonomic senior synonym of this species.

AGE: Mid-Late Albian.


Infraspecific taxa:


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