@article {41908,
	title = {Comparative paleoecology of Cambrian trilobite extinctions},
	volume = {73},
	year = {1999},
	pages = {337-354},
	publisher = {Journal of Paleontology},
	url = {http://www.jstor.org/stable/1306789?seq=4},
	author = {Westrop, Stephen R. and Cuggy, Michael B.}
}
