Gymnodinium luridum Deflandre, 1938, p.166

Now Endoscrinium. Originally Gymnodinium, subsequently Scriniodinium, thirdly (and now) Endoscrinium, fourthly Tubotuberella.

Holotype: Deflandre, 1938, pl.5, figs.4-5; Jan du Chêne et al., 1986, pl.109, figs.6-8.
Age: Early Oxfordian