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Multiplicisphaeridium robustum ssp. fissa

Multiplicisphaeridium robustum ssp. fissum (Sannemann, 1955) Fensome et al., 1990

Originally Hystrichosphaeridium robustum ssp. fissum, subsequently (and now) Multiplicisphaeridium robustum ssp. fissum; see also Baltisphaeridium robustum ssp. fissum (an acritarch subspecies; combination illegitimate). This combination was not validly published in Eisenack et al., 1973 since these authors, did not clearly indicate the taxonomic rank.
Holotvpe: Sannemann, 1955, pl.6, fig.9
Age: Devonian (Late Givetian)
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