The Paleocene is the earliest Palaeogene epoch, approximately to million years ago.[ref]
International Chronostratigraphic Chart by International Commission on Stratigraphy (2026-06). Paleocene row
It follows the Cretaceous and precedes the Eocene. Correlating the same interval between separated sedimentary rocks requires independent stratigraphic evidence; thickness alone is insufficient because deposition rates, erosion and missing intervals differ between sites. New to topics? Read the docs here!