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Hystrichosphaeridium intermedium
Hystrichosphaeridium? intermedium Wetzel, 1933b, p.46; text-fig.14 ex Deflandre, 1937b, p.77.
Originally Hystrichosphaera (name not validly published), subsequently Hystrichosphaeridium, thirdly Baltisphaeridium (Acritarch), fourthly (and now) Hystrichosphaeridium?. Questionable assignment: Stover and Evitt (1978, p.56) as a problematic species.
Junior homonym: Hystrichosphaeridium intermedium Eisenack, 1954a.
Matsuoka (1983a, p.16) considered Hystrichosphaeridium (as Polysphaeridium) zoharyi to be a possible taxonomic junior synonym of this species.
This name was not validly published in Wetzel (1933b) since the generic name Hystrichosphaera was not validly published until 1937.
Holotype: O. Wetzel, 1933, text-fig.14
Age: ?Late Cretaceous
Originally Hystrichosphaera (name not validly published), subsequently Hystrichosphaeridium, thirdly Baltisphaeridium (Acritarch), fourthly (and now) Hystrichosphaeridium?. Questionable assignment: Stover and Evitt (1978, p.56) as a problematic species.
Junior homonym: Hystrichosphaeridium intermedium Eisenack, 1954a.
Matsuoka (1983a, p.16) considered Hystrichosphaeridium (as Polysphaeridium) zoharyi to be a possible taxonomic junior synonym of this species.
This name was not validly published in Wetzel (1933b) since the generic name Hystrichosphaera was not validly published until 1937.
Holotype: O. Wetzel, 1933, text-fig.14
Age: ?Late Cretaceous