Cyclopsiella chateauneufii Head et al., 1989 nom. subst. pro Ascostomocystis granulata Chateauneuf, non Cyclopsiella granulata He Chengquan and Li Peng, 1981
Acritarch

Originally Ascostomocystis granulata, subsequently (and now) Cyclopsiella? chateauneufii.
Head et al., 1989, questionably included this species in Cyclopsiella.
Holotype: Chateauneuf, 1980, pl.19, fig.8
Age: Middle Eocene-Early Oligocene