Cleistosphaeridium minus
From dinoflaj2
"minus" Jiabo, 1978, p.62, pl.20, figs.13-16. Holotype: Jiabo, 1978, pl.20, fig.16. NOW Impletosphaeridium. Originally Cleistosphaeridium, subsequently (and now) Impletosphaeridium. Age: Early Tertiary.
Parent: Cleistosphaeridium