<p>This dataset includes U-Pb zircon summary excel file with datatables for all lonestones analyzed.This file also sorts data to include information of Rim and Core analyses were appropriate.</p> <p><br></p> <p>In addition, raw data for each individual sample are included that have detailed information regarding parameters during each analytical session. </p> <p><br></p> <p>All samples were analyzed at the University of Arizona Laserchron Center (NSF-EAR 1649254)</p> <p><br></p> <p>High Resolition Scanning Electron Microscopy Images are also included that were imaged at the University of Arizona Laserchron Center</p> <p><br></p>