Hystrichosphaeridium intermedium Eisenack, 1954a

Name illegitimate. Jr. homonym of Hystrichosphaeridium intermedium (O.Wetzel, 1933) Deflandre 1937.
Now Visbysphaera meson. Originally Hystrichosphaeridium intermedium (name illegitimate), subsequently Hystrichosphaeridium meson, thirdly Baltisphaeridium meson,fourthly (and now) Visbysphaera meson, fifthly Multiplicisphaeridium meson.
Taxonomic junior synonym: Baltisphaeridium (subsequently Multiplicisphaeridium) micropilare Cramer, 1970, an acritarch species, according to Ye Xiaorong (1984, p.42).

Holotype: Eisenack, 195, pl.1, fig.3
Age: Silurian (Late Llandovery-Late Ludlow)