Lingulodinium machaerophorum ssp. megacanthum (Rossignol, 1964) Lentin and Williams, 1973

Originally Baltisphaeridium machaerophorum var. megacanthum, subsequently (and now) Lingulodinium machaerophorum ssp. megacanthum.
Holotype: Rossignol, 1964, pl.2, fig.15
Age: Pleistocene