Global stratigraphic dataset composing LOK2016CS database: Biostratigraphic ranges of uppermost Tithonian-Hauterivian bioevents (Lower Cretaceous): Tables 1 and 2

Abstract

The Research article “Jurassic-Cretaceous boundary bioevents and magnetochrons: A stratigraphic experiment” (Scott, 2019), describes the Lower Cretaceous 2016 Chronostratigraphic Database (LOK2016CS). This database comprises the first and last occurrences of key fossil ranges in forty-one global stratigraphic sections (Table 1). This data has been published by qualified biostratigraphers in selected worldwide sections that have been carefully measured, collected and fossil species consistently identified. Regional reference sections and approved or proposed Global Boundary Stratotype Section and Point (GSSP) are included. This data set is composed of lowermost and uppermost positions of species measured in meters or feet by the research team in each section, which represent the first and last occurrences of the species. These data sets were composited into the numerical age chart, LOK2016CS (Table 2), by graphic correlation. The 2016 Geologic Time Scale was the X-axis section on the first X/Y plot so that the numerical ages were calibrated consistently with that scale. The numerical ages of each event estimate the First and Last Appearance Datums (FAD, LAD) within the geographic area encompassed by the sampled sections.