Multiplicisphaeridium eisenackii (Sannemann, 1955) Eisenack et al., 1973

Originally Hystrichosphaeridium, subsequently Baltisphaeridium (an acritarch genus), thirdly (and now) Multiplicisphaeridium.
Holotype: Sannemann, 1955, pl.4, fig.10
Age: Devonian (Late Givetian)