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Baltisphaeridium huecospinosum
Baltisphaeridium? huecospinosum, (Cramer, 1964), Cramer, 1966
Combination not validly published since Cramer, 1966 did not fully reference the basionym.
Now Umbellasphaeridium (an acritarch genus). Originally Hystrichosphaeridium?, subsequently Baltisphaeridium? (combination not validly published), thirdly Florisphaeridium (an acritarch genus), fourthly (and now) Umbellasphaeridium (an acritarch genus). Cramer, 1966 questionably included this species in Baltisphaeridium.
Holotype: Cramer, 1964, pl.6, fig.2
Age: Devonian (Emsian)
Combination not validly published since Cramer, 1966 did not fully reference the basionym.
Now Umbellasphaeridium (an acritarch genus). Originally Hystrichosphaeridium?, subsequently Baltisphaeridium? (combination not validly published), thirdly Florisphaeridium (an acritarch genus), fourthly (and now) Umbellasphaeridium (an acritarch genus). Cramer, 1966 questionably included this species in Baltisphaeridium.
Holotype: Cramer, 1964, pl.6, fig.2
Age: Devonian (Emsian)