Exochosphaeridium cenomaniense
From dinoflaj3
"?cenomaniense" Norvick, 1976, p.52–53, pl.4, figs.4,8. Holotype: Norvick, 1976, pl.4, fig.4. NOW Pervosphaeridium. Originally Exochosphaeridium, subsequently Exochosphaeridium?, thirdly (and now) Pervosphaeridium. Questionable assignment: Stover and Evitt (1978, p.154). Age: Cenomanian.
Parent: Exochosphaeridium