@article {667246,
	title = {A basin redox transect at the dawn of animal life},
	volume = {371-372},
	year = {2013},
	pages = {143-155},
	author = {Sperling, E. A. and Knoll, A.H. and Halverson, G. P. and Macdonald, Francis A. and Johnston, D. T.}
}
