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Umbellasphaeridium huecospinosum
Umbellasphaeridium huecospinosum (Cramer, 1964, p.331, pl.6, fig.2; text-fig.36, no.7) Cramer and Diez, 1976, p.96.
Acritarch species.
Originally Hystrichosphaeridium?, subsequently Baltisphaeridium? (combination not validly published, Acritarch), thirdly Florisphaeridium (Acritarch), fourthly (and now) Umbellasphaeridium.
Holotype: Cramer, 1964, pl.6, fig.2.
Age: Devonian (Emsian).
Acritarch species.
Originally Hystrichosphaeridium?, subsequently Baltisphaeridium? (combination not validly published, Acritarch), thirdly Florisphaeridium (Acritarch), fourthly (and now) Umbellasphaeridium.
Holotype: Cramer, 1964, pl.6, fig.2.
Age: Devonian (Emsian).