Ma, C. al., et Supplemental material: Testing the astronomical time scale for oceanic anoxic event 2, and its extension into Cenomanian strata of the Western Interior Basin (USA) GSA Data Repository Item 2014136, GSA Bulletin. File size: about 1865 KB. Geoscience 2014-01-01
    https://gsapubs.figshare.com/articles/journal_contribution/Supplemental_material_Testing_the_astronomical_time_scale_for_oceanic_anoxic_event_2_and_its_extension_into_Cenomanian_strata_of_the_Western_Interior_Basin_USA_/12530981
10.1130/2014136