Palaeophytochemical Constituents from the Miocene-fossil Wood of Picea likiangensis in Xun-dian of Yunnan, China

, Constituents, 5-Phenyl-5,10,10a,11-tetrahydro-4bH-benzo[b]-fluorene-3,7-diolThe analysis of chemical constituents in specific plantfossils provides crucial information for their probablediagenetic pathways. Natural products in plant fossils couldretain their characteristic basic structural skeletons and beused as chemosystematic marker or biomarkers for theirbiological origin, though they may undergo rapid diageneticprocesses during their fossilization.