title: Does fossil pigment and DNA data from Mediterranean sediments invalidate the use of green sulfur bacterial pigments and their diagenetic derivatives as proxies for the assessment of past photic zone euxinia?
authors.forename: Jaap S
authors.initials: JS
authors.lastname: Sinninghe Damsté
authors.forename: Ellen C
authors.initials: EC
authors.lastname: Hopmans
mesh_terms: D001419:Bacteria / Q000145:classification* / Q000235:genetics*; D004269:DNA, Bacterial / Q000235:genetics / Q000302:isolation & purification*; D005580:Fossils; D019015:Geologic Sediments / Q000382:microbiology*; D010860:Pigments, Biological / Q000302:isolation & purification*
chemical_list: D004269:DNA, Bacterial; D010860:Pigments, Biological