Praecalcigonellum polymorphum subsp. tenue (Keupp, 1980a, p.131-132, pl.16, figs.2-6) Lentin and Williams, 1993, p.538.
TYPE: Holotype: Keupp, 1980a, pl.16, figs.2-3. HISTORY: Originally Calcigonellum polymorphum subsp. tenue, subsequently (and now) Praecalcigonellum polymorphum subsp. tenue. AGE: late Clansayesian.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |