Emmetrocysta urnaformis
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*urnaformis (Cookson, 1953, p.118, pl.2, figs.41-43) Stover, 1975, p.42. Holotype: Cookson, 1953, pl.2, figs.41-42. Originally Cannosphaeropsis, subsequently Polystephanephorus, thirdly (and now) Emmetrocysta. Age: Oligocene.
Parent: Emmetrocysta
