Calcigonellum sulcatum
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"sulcatum" Keupp, 1979c, p.658, pl.6, figs.16-21. Holotype: Keupp, 1979c, pl.2, figure labelled as "C. sulcatum". NOW Praecalcigonellum. Originally Calcigonellum, subsequently (and now) Praecalcigonellum. Age: Early Hauterivian.
Parent: Calcigonellum