@article {120381, title = {The stratigraphic relationship between the Shuram carbon isotope excursion, the oxygenation of Neoproterozoic oceans, and the first appearance of the Ediacara biota and bilaterian trace fossils in northwestern Canada}, journal = {Chemical Geology}, volume = {362}, year = {2013}, pages = {250-272}, author = {Macdonald, Francis A. and Strauss, Justin V. and Sperling, Erik. A. and Halverson, Galen P. and Narbonne, Guy M. and Johnston, David T. and Kunzmann, Marcus and Schrag, Daniel P. and Higgins, John A.} }