Impletosphaeridium pycnospinosum

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"pycnospinosum" Benedek, 1972, p.32, pl.12, fig.14.  Emendation: Benedek and Sarjeant, 1981, p.343-344, as Lingulodinium pycnospinosum.  Holotype: Benedek, 1972, pl.12, fig.14; Benedek and Sarjeant, 1981, fig.10, no.1.  NOW Lingulodinium.  Originally Impletosphaeridium, subsequently Lingulodinium?, thirdly (and now) Lingulodinium.  Age: mid-late Oligocene.

Parent: Impletosphaeridium