@article {7196,
	title = {The origin and early taxonomic diversification of pelecypods},
	journal = {Philosophical Transactions of the Royal Society of London, Series B},
	volume = {284},
	year = {1978},
	note = {PDF},
	pages = {225-246},
	keywords = {bivalvia, diversification, evolution, fossil record},
	author = {Pojeta, John, Jr.}
}
