Leptodinium freakei (Sarjeant, 1963) Sarjeant in Davey et al., 1969

Originally Gonyaulax (Appendix B), subsequently Gonyaulacysta (combination not validly published), thirdly Leptodinium.
Taxonomic senior synonym: Leptodinium subtile, according to Brenner (1988, p.60).

Holotype: Sarjeant, 1963, pl.1, figs.1-3; Jan du Chene et al., 1986, pl.67, figs.13-14
Age: Oxfordian