These data sets contain the raw measurements for the magnetostratigraphy presented in "Reptile footprints on a pelagic seafloor as a vestige of a synsedimentary seismic event in the lower Campanian Scaglia Rossa Basin of the Umbria-Marche Apennines (Italy)". They include the alternating field demagnetisation sequence ("BUS24_demagnetisation.csv") acquired on a cryogenic magnetometer and bulk magnetic susceptibility file with repeat measurements ("BUS24_susc.csv"). Methods Oriented, 23-mm-diameter, 40-mm-long core samples were collected at 2.5 m intervals from the BUS section using a cordless power drill with a 2.5 mm dry concrete cup cutter. The alternating field (AF) demagnetization of magnetic remanence was measured using an Applied Physics Systems Model 755 cryogenic magnetometer at the Geological Survey of Norway. Bulk magnetic susceptibility values were measured on an AGICO MFK1-A Kappabridge at the Norwegian University of Science and Technology. Sample orientation parameters: Core orientation is trend of core axis and plunge (dip of core axis with respect to horizontal) Bedding orientation is strike using right-hand rule and dip

ABSTRACT A group of free climbers by chance discovered a large number of footprint traces deeply impressed on a vast pelagic limestone slab on the steep northeastern limb of the Monte Cònero anticline, near the city of Ancona (Marche region of central-eastern Italy). The footprints probably represent a stampede of panicking sea turtles that were mobilized en masse by an earthquake. These tracks were subsequently covered by a fluxoturbidite triggered by the same earthquake. The same layer is exposed in a 40-m-thick section along the littoral zone below. This new section provides the ability, through combined bio- and magneto-stratigraphic analysis, to place the footprint layer in the lower Campanian foraminiferal biozone Globotruncanita elevate and the lowermost part of magnetochron C33n. Most of this section comprises calcarenitic and calcilutitic turbidites interbedded with pelagic biomicrites, which witnessed a period of enhanced seismic activity exacerbated by a climate change-driven eustatic sea level fluctuation. Following a review of the sedimentological and tectono-seismic history of the Cretaceous Umbria-Marche paleobasin with particular attention to the Monte Cònero area, we will proceed with the description and documentation of our integrated stratigraphic analysis of the new section exposed along the northeastern littoral known as La Vela Beach.