- Biomolecules preserved in ca. 168 million year old fossil conifer woodLeszek Marynowski
Faculty of Earth Sciences, University of Silesia, Bedzińska Street 60, 41 200 Sosnowiec, Poland
Naturwissenschaften 94:228-36. 2007..Therefore, the natural product terpenoids are of great advantage in systematics of fossil plant remains older than Paleogene and lacking suitable anatomical preservation...
- Levoglucosan and other cellulose markers in pyrolysates of Miocene lignites: geochemical and environmental implicationsDaniele Fabbri
Laboratory of Environmental Sciences R Sartori, CIRSA, University of Bologna, via S Alberto 163, 48100 Ravenna, Italy
Environ Sci Technol 42:2957-63. 2008..This indicates that mannosan and galactosan are better specific tracers for combustion of contemporary biomass in those regions were the utilization of brown coals containing fossilized cellulose is important...