Multiplicisphaeridium malum (Cramer, 1964) Eisenack et al., 1973

Now Rhacobrachion (an acritarch genus). Originally Baltisphaeridium (an acritarch genus), subsequently Evittia (an acritarch genus), thirdly Multiplicisphaeridium, fourthly (and now) Rhacobrachion (an acritarch genus); see also Hystrichosphaeridium (combination not validly published).
Holotype: Cramer, 1964, pl.1, fig.8
Age: Silurian (Ludlow)