Leptodinium? crassinervum (Deflandre, 1939) Sarjeant, 1969; (Deflandre, 1939b, p.144, pl.6, fig.5 ex Sarjeant, 1967b, p.248-249) Sarjeant, 1969, p.12. Emendation: Nøhr-Hansen, 1986, p.33, as Cribroperidinium crassinervum.

Now Cribroperidinium. Originally Palaeoperidinium, subsequently Leptodinium, thirdly Leptodinium?, fourthly (and now) Cribroperidinium. See also Gonyaulacysta (combination not validly published).
Stover and Evitt, 1978, considered this to be a problematical species of Leptodinium.
Sarjeant, 1982, considered this to be a provisionally accepted species of Leptodinium.
Jan du Chêne et al., 1986, recommended that the name be restricted to the holotype.

Holotype: Deflandre, 1939, pl.6, fig.5; Jan du Chêne et al., 1986, pl.70, figs.1-4
Age: Kimmeridgian