Rhacobrachion mala (Cramer, 1964) Dorning, 1981

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