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Facultad de Ciencias Naturales y Museo - UNLP

[coccoliths] KN zonation

Young, Jeremy jeremy.young at ucl.ac.uk
Wed Mar 26 19:26:12 -03 2025


Hi
In TimeScaleCreator there is KN nannofossil zonation for the Late Cretaceous, with zones from KN1 at the top of the Maastrichtain to KN40 in Cenomanian.  However, I can't find this zonation anywhere else. Does anyone know where it comes from, and if it has any continuing value?
Jeremy
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