Membranophoridium perforatum
From dinoflaj2
perforatum Wilson, 1988, p.26, pl.16, figs.5a-b,6a-b. Holotype: Wilson, 1988, pl.16, figs.5a-b; Fensome et al., 1996, figs.1-2 - p.2271. This name was not validly published in Wilson (1985, p.93) since no description or illustration was provided. Age: Early Eocene (Mangaorapan- Heretaungan).
Parent: Membranophoridium
