Operculodinium xanthium
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xanthium (Benedek, 1972, p.27-28, pl.9, fig.8; text-fig.9) Stover and Evitt, 1978, p.179. Emendation: Benedek and Sarjeant, 1981, p.342-343, as Lingulodinium xanthium. Holotype: Benedek, 1972, pl.9, fig.8; Benedek and Sarjeant, 1981, fig.9, no.5. Originally Cordosphaeridium, subsequently (and now) Operculudinium, thirdly Lingulodinium. Stover and Hardenbol (1994, p.33) retained this species in Operculodinium. Age: mid-late Oligocene.
Parent: Operculodinium
