@article {6637,
	title = {Presence of a posterodorsal ridge in Jurassic to Recent larval shells of arcoidean bivalves},
	journal = {Journal of Molluscan Studies},
	volume = {70},
	year = {2004},
	note = {PDF},
	pages = {302-304},
	keywords = {arcoida, bivalvia, mollusca, ontogeny, prodissoconch, pteriomorphia, shell morphology},
	author = {Keil, Steffen}
}
