Palaeoperidinium amplum

"amplum" (Harland, 1973, p.673–674, pl.84, figs.1,7; text-fig.8) Lentin and Williams, 1976, p.109.  Holotype: Harland, 1973, pl.84, fig.1.  Originally Lejeunia (generic name illegitimate), subsequently Astrocysta (combination not validly published), thirdly Palaeoperidinium.  Taxonomic senior synonym: Palaeoperidinium cretaceum, according to Harker and Sarjeant in Harker et al. (1990, p.128).  Age: late Campanian.

Parent: Palaeoperidinium