title: Palaeobiology: sea change in sediments.
authors.forename: David J
authors.initials: DJ
authors.lastname: Des Marais
mesh_terms: D001315:Australia; D001419:Bacteria / Q000737:chemistry / Q000302:isolation & purification* / Q000378:metabolism*; D015415:Biomarkers / Q000032:analysis / Q000737:chemistry; D017753:Ecosystem; D019015:Geologic Sediments / Q000737:chemistry*; D049690:History, Ancient; D008386:Marine Biology; D009792:Oceans and Seas; D010100:Oxygen / Q000378:metabolism*; D010788:Photosynthesis; D012623:Seawater / Q000737:chemistry / Q000382:microbiology*; D013455:Sulfur / Q000032:analysis / Q000378:metabolism; D013997:Time Factors; D014871:Water Microbiology
chemical_list: D015415:Biomarkers; D013455:Sulfur; D010100:Oxygen