Astrocysta manumcooksonii

"manumcooksonii" Corradini, 1973, p.176–177, pl.28, figs.4,6.  Holotype: Corradini, 1973, pl.28, fig.4.  Originally Astrocysta, subsequently Palaeoperidinium.  Taxonomic senior synonym: Palaeoperidinium cretaceum, according to Lentin and Williams (1976, p.110).  Age: Late Cretaceous–Paleocene.

Parent: Astrocysta