Pervosphaeridium cenomaniense
From dinoflaj3
cenomaniense (Norvick, 1976, p.52–53, pl.4, figs.4,8) Below, 1982c, p.27. Holotype: Norvick, 1976, pl.4, fig.4. Originally Exochosphaeridium, subsequently Exochosphaeridium?, thirdly (and now) Pervosphaeridium. Age: Cenomanian.
Parent: Pervosphaeridium