GeochemistryPublished 31 August 2023Sedimentary diterpane origins—inferences from oils of varying source depositional environment and ageS. D. Killops · A. N. Bishop · E. W. Tegelaar · K. Urdal · M. R. K. Ghammari · J. W. H. WeijersFrontiers in Geochemistrydoi 10.3389/fgeoc.2023.1241784