Hystrichosphaeridium oligofurcatum Eisenack, 1954

NOW Visbysphaera. Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly (and now) Visbysphaera, fourthly Multiplicisphaeridium.
Holotype: Eisenack, 1954, pl.1, fig.4, text-fig 5
Age: Silurian (Late Llandovery)