Gonyaulacysta episoma

"episoma" Sarjeant, 1966b, p.118–119, pl.13, figs.9–10; text-fig.27.  Holotype: Sarjeant, 1966b, pl.13, figs.9–10; text-fig.27; Jan du Chêne et al., 1986a, pl.67, figs.15–16.  NOW Leptodinium.  Originally Gonyaulacysta, subsequently Millioudodinium, thirdly Rhynchodiniopsis, fourthly (and now) Leptodinium.  Age: late Barremian.

Parent: Gonyaulacysta