Paleozoic-Mesozoic Terrestrial Total Organic Carbon and Organic Carbon Isotope Database

Paleozoic-Mesozoic Terrestrial Total Organic Carbon and Organic Carbon Isotope Database (PM-TOCI) compiles 66,587 individual data points (49,016 TOC and 17,571 δ¹³Corg) from 619 publications, spanning the Devonian to Cretaceous (419-66 Ma). Each entry is accompanied by 34 standardized metadata fields, covering geographic information, stratigraphic age, lithology, and depositional facies, thereby enabling consistent filtering, comparison, and reuse across spatial and temporal scales. This dataset is intended to facilitate future data-driven studies of terrestrial organic carbon accumulation, paleoclimate variability, source-rock assessment, and long-term carbon cycle dynamics, as well as the link between carbon cycle and biotic evolution.