Multiplicisphaeridium oligofurcatum (Eisenack, 1954) Eisenack et al., 1973

Now Visbysphaera (an acritarch genus). Originally Hystrichosphaeridium, subsequently Baltisphaeridium (an acritarch genus), thirdly (and now) Visbysphaera (an acritarch genus), fourthly Multiplicisphaeridium. Priewalder, 1987 retained this species in Visbysphaera Lister, 1970.
Holotype: Eisenack, 1954, pl.1, fig.4; text-fig.5
Age: Silurian (Late Llandovery)