Subtilisphaera cretacea

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"cretacea" (Pocock, 1962, p.80, pl.14, figs.219-221 ex Davey, 1970, p.359) Jain and Millepied, 1973, p.27.  Emendation: Harding, 1990a, p.44, as Palaeoperidinium cretaceum.  Holotype: Pocock, 1962, pl.14, fig.219.  NOW Palaeoperidinium.  Originally Palaeoperidinium (name not validly published), subsequently Astrocysta, thirdly Lejeunia? (combination illegitimate), fourthly Subtilisphaera, fifthly (and now) Palaeoperidinium.  Taxonomic junior synonyms: Lejeunia (as Palaeoperidinium) ampla, according to Harker and Sarjeant in Harker et al. (1990, p.128); Astrocysta (as Palaeoperidinium) manumcooksonii, according to Lentin and Williams (1976, p.110).  Age: Aptian-Albian.

Parent: Subtilisphaera