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Supplemental Information

Stratigraphic Chart

Stratigraphic correlation of Upper Cretaceous terrestrial strata of the North American Western Interior from the Santonian through to the K-Pg boundary. Dinosaur taxon ranges plotted on to correlated geological units.

DOI: 10.7287/peerj.preprints.2554v1/supp-1

Recalibration Sheet

This sheet shows recalibration calculations for over 200 published Ar / Ar radiometric dates. These are recalibrated to the two current standards (Kuiper et al., 2008; Renne et al., 2011), shown on separate tabs. References are given within pop up notes for the respective recalibrated date(s).

DOI: 10.7287/peerj.preprints.2554v1/supp-2

References for Stratigraphic Chart

This text file lists all the references used in construction of the stratigraphic chart (Table S1).

DOI: 10.7287/peerj.preprints.2554v1/supp-3

Additional Information

Competing Interests

The author declares that they have no competing interests.

Author Contributions

Denver W Fowler conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Data Deposition

The following information was supplied regarding data availability:

The raw data has been supplied as a supplementary file.

Funding

The author received no funding for this work.


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