Boss, K.J.; Parodiz, J.J. (1977). Paleospecies of Neotropical ampullariids and notes on other fossil non-marine South American gastropods. Annals of the Carnegie Museum of Natural History. 46(9): 107-127.
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Boss, K.J.; Parodiz, J.J.
1977
Paleospecies of Neotropical ampullariids and notes on other fossil non-marine South American gastropods