Biomarker and isotopic trends in a Permian-Triassic sedimentary section at Kap Stosch, Greenland

► We studied organic matter in a Permian-Triassic transition section Kap Stosch, East Greenland. ► Mixed marine and terrestrial kerogens were identified. ► Marine biomarkers dominated the extractable organics. ► Chlorobi biomarkers suggest euxinic conditions prevailed throughout the sedimentary section