@article {6708,
	title = {Species{\textendash}genus ratios reflect a global history of diversification and range expansion in marine bivalves},
	journal = {Proceedings of the Royal Society of London. Series B},
	year = {2007},
	note = {PDF},
	pages = {1-7},
	keywords = {biogeography, bivalvia, diversification, macroevolution, mollusca},
	author = {Krug, Andrew Z. and Jablonski, David and Valentine, James W.}
}
