title: A new molecular window on early life.
authors.affiliation: Botanical Museum, Harvard University, Cambridge, MA 02138, USA. aknoll@oeb.harvard.edu
authors.forename: A H
authors.initials: AH
authors.lastname: Knoll
mesh_terms: D001272:Atmosphere; D001315:Australia; D005075:Biological Evolution; D015415:Biomarkers / Q000032:analysis; D000458:Cyanobacteria / Q000502:physiology*; D005057:Eukaryotic Cells / Q000502:physiology*; D005580:Fossils; D019015:Geologic Sediments / Q000737:chemistry*; D006838:Hydrocarbons / Q000032:analysis*; D008055:Lipids / Q000032:analysis*; D010100:Oxygen; D010163:Paleontology; D010788:Photosynthesis; D013261:Sterols / Q000378:metabolism; D014315:Triterpenes / Q000032:analysis*
chemical_list: D015415:Biomarkers; D006838:Hydrocarbons; D008055:Lipids; D013261:Sterols; D014315:Triterpenes; D010100:Oxygen