S1 Supporting Information.docx

The data includes the locations of the fossilized root systems belonging to <i>Archaeopteris</i>, <i>Eospermatopteris</i> and Lycopsid trees, as well as drill-core extracts, and paleosol surface features such as pseudoanticlines at the TCHD (Town of Cairo Highway Department fossil site). The fossils locations were recorded using Stein's map (Stein et al, 2020) for sake of consistency with previous studies at this site. Some general size attributes of the fossils are also provided. The data collected in the field using 5*5 inches grid system.