Data from: Estimates of late Early Cretaceous atmospheric CO2 from Mongolia based on stomatal and isotopic analysis of Pseudotorellia

<p>Our dataset includes 115 leaf cuticles related to two species of <em>Pseudotorellia</em> Florin from three stratigraphically similar samples at the Tevshiin Govi lignite mine in central Mongolia (~119.7–100.5 Ma, Aptian–Albian, Cretaceous). We apply a well-vetted paleo-CO₂ proxy based on leaf gas-exchange principles (the Franks model) to those leaves for paleo-CO₂ reconstruction, which requires leaf stomata and carbon isotope analysis. All cuticle measurements are summarized in this dataset. </p>