RASCS curves (relative abundance of the “surviving” Cretaceous species), fitted to an exponential function, across the lower Danian at (A) El Kef and (B) Sidi Ziane.

  Part of: Arenillas I, Arz JA, Metsana-Oussaid F, Gilabert V, Belhai D (2022) Hypothesis testing on the planktic foraminiferal survival model after the KPB mass extinction: evidence from Tunisia and Algeria. Fossil Record 25(1): 43-63. https://doi.org/10.3897/fr.25.79958