Palaeoperidinium rugosum
From dinoflaj3
?rugosum He Chengquan in Zheng Yahui and He Chengquan, 1984, p.98, pl.7, figs.13–15. Holotype: Zheng Yahui and He Chengquan, 1984, pl.7, fig.15. Questionable assignment: Evitt et al. (1998, p.48). Age: Late Cretaceous.
Parent: Palaeoperidinium