Praecalcigonellum polymorphum subsp. dentatum
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subsp. dentatum (Keupp, 1980a, p.131, pl.15, figs.13-15; pl.16, fig.1) Lentin and Williams, 1993, p.538. Holotype: Keupp, 1980a, pl.15, fig.13. Originally Calcigonellum polymorphum subsp. dentatum, subsequently (and now) Praecalcigonellum polymorphum subsp. dentatum. Age: late Gargasian. Parent: Praecalcigonellum polymorphum