Cannosphaeropsis urnaformis
From dinoflaj2
"urnaformis" Cookson, 1953, p.118, pl.2, figs.41-43. Holotype: Cookson, 1953, pl.2, figs.41-42. NOW Emmetrocysta. Originally Cannosphaeropsis, subsequently Polystephanephorus, thirdly (and now) Emmetrocysta. Age: Oligocene.
Parent: Cannosphaeropsis
