Cleistosphaeridium disjunctum, Davey et al., 1966

Tax. jr. synonym of Lingulodinium machaerophorum (Deflandre and Cookson, 1955) Wall, 1967, according to Reid, 1974.

Holotype: Davey et al., 1966, pl.11, fig.9; Bujak et al., 1980, pl.8, figs.1-2
Age: Eocene