Maduradinium spatiosum (Morgenroth, 1966) Lentin and Williams, 1976

Now Lejeunecysta. Originally Lejeunia (an illegitimate generic name), subsequently Maduradinium, thirdly (and now) Lejeunecysta.
Holotype: Morgenroth, 1966, pl.1, fig.5
Age: Early Oligocene