Oligosphaeridium porosum
From dinoflaj2
porosum Lentin and Williams, 1981, p.201. Holotype: Jain, 1977b, pl.1, fig.5. Originally Oligosphaeridium perforatum Jain, 1977b (name illegitimate), subsequently (and now) Oligosphaeridium porosum. Substitute name for Oligosphaeridium perforatum Jain, 1977b, p.181, pl.1, figs.5-7 (an illegitimate name). Age: Early Albian.
Parent: Oligosphaeridium
