@article {890726,
	title = {Oxygen, facies, and secular controls on the appearance of Cryogenian and Ediacaran body and trace fossils in the Mackenzie Mountains of northwestern Canada},
	journal = {American Bulletin},
	volume = {128},
	number = {3-4},
	year = {2015},
	pages = {558-575},
	author = {Sperling, E. A. and Carbonne, C. and Strauss, J. V. and Johnston, D. T. and Narbonne, G. M. and Macdonald, Francis A.}
}
