oa NOVEL BIOMARKERS ORIGINATED FROM TAXODIOIDEAE IDENTIFIED IN THE LATE CRETACEOUS SEDIMENTS

The presence of monoterpenylabietenoids, novel biomarkers from Taxodioideae has been studied using gas chromatography-mass spectrometry. Thermal maturity of the organic matter (OM) was low - mean vitrinite reflectance range from 0.34 to 0.45% Rr.

Here, we report the occurrence of important natural products, 7α- and 7β-p-cymenylferruginol (21,7α and 21,7β-p-isopropyl-benzylferruginol), along with two novel minor additional isomers, namely 3α- and 3β-p-cymenylferruginol, and their diagenetic biomarker products like: 7α- and 7β-p-cymenyldehydroabietane, 9,10-p-cymenylretene, 9-p-cymenylsimonellite and other.