Maduradinium spatiosum
From dinoflaj2
"spatiosum" (Morgenroth, 1966b, p.3-4, pl.1, fig.5) Lentin and Williams, 1976, p.73. Holotype: Morgenroth, 1966b, pl.1, fig.5. NOW Lejeunecysta. Originally Lejeunia (generic name illegitimate), subsequently Maduradinium, thirdly (and now) Lejeunecysta. Age: Early Oligocene.
Parent: Maduradinium