@article {555,
	title = {Paleospecies of Neotropical ampullariids and notes on other fossil non-marine South American gastropods.},
	journal = {Annals of Carnegie Museum},
	volume = {46},
	year = {1977},
	pages = {107-127},
	author = {Boss, K.J. and Parodiz, J.J.}
}
