Baltisphaeridium eoplanctonicum, (Eisenack, 1955), Downie, 1959

Now Oppilatala (an acritarch genus). Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly Multiplicisphaeridium (an acritarch genus), fourthly (and now) Oppilatala (an acritarch genus).
Tax. sr. synonym of the acritarch species Multiplicisphaeridium septispinosum Lister, 1970, according to Eisenack et al., 1973.

Holotype: Eisenack, 1955, pl.4, fig.14
Age: Silurian (Ludlow)