Praecalcigonellum polymorphum subsp. tenue

subsp. tenue (Keupp, 1980a, p.131-132, pl.16, figs.2-6) Lentin and Williams, 1993, p.538.  Holotype: Keupp, 1980a, pl.16, figs.2-3.  Originally Calcigonellum polymorphum subsp. tenue, subsequently (and now) Praecalcigonellum polymorphum subsp. tenue.  Age: Late Aptian. Parent: Praecalcigonellum polymorphum