Phthanoperidinium polytrix
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polytrix (Benedek, 1972, p.20, pl.6, figs.1a-b) Lentin and Williams, 1976, p.76. Emendation: Benedek and Sarjeant, 1981, p.330-333, as Phthanoperidinium polytrix. Holotype: Benedek, 1972, pl.6, figs.1a-b; Benedek and Sarjeant, 1981, fig.2, nos.4,6, fig.6. Originally Hystrichogonyaulax, subsequently Phthanoperidinium?, thirdly (and now) Phthanoperidinium. Questionable assignment: Lentin and Williams (1976, p.76) - however, Benedek and Sarjeant (1981, p.330) included the species in Phthanoperidinium without question. Age: mid Oligocene.
Parent: Phthanoperidinium
