Praecalcigonellum duopylum Willems, 1995b, p.146,148-150, figs.1a-e; fig.2, nos.1-6; fig.3, nos.1-7.
TYPE: Holotype: Willems, 1995b, fig.2, nos.1-4; fig.3, nos.5-6.
AGE: earliest Danian.