Cyclonephelium regulatum
From dinoflaj2
"regulatum" Jiabo, 1978, p.78, pl.27, figs.1-2. Holotype: Jiabo, 1978, pl.27, fig.1. NOW Membranophoridium?. Originally Cyclonephelium, subsequently (and now) Membranophoridium?. Age: Early Tertiary.
Parent: Cyclonephelium