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Phthanoperidinium illustrans
Phthanoperidinium? illustrans (O. Wetzel, 1933) Lentin and Williams, 1973
Originally Peridinium, subsequently (and now) Phthanoperidinium?. At the time of the transfer, Lentin and Williams, 1973 questionably included this species in Phthanoperidinium. Stover and Evitt, 1978 considered this to be a "problematical species" of Phthanoperidinium.
Holotype: O. Wetzel, 1933, pl.2, fig.15
Age: Senonian
Originally Peridinium, subsequently (and now) Phthanoperidinium?. At the time of the transfer, Lentin and Williams, 1973 questionably included this species in Phthanoperidinium. Stover and Evitt, 1978 considered this to be a "problematical species" of Phthanoperidinium.
Holotype: O. Wetzel, 1933, pl.2, fig.15
Age: Senonian