MSBIAS source details
Chamberlin, R. V. & Berry, E. (1933). Mollusks of the Pliocene deposits at Collinston, Utah. The Nautilus. 47(1): 25-29, pls. 4-5.
301385
Chamberlin, R. V. & Berry, E.
1933
Mollusks of the Pliocene deposits at Collinston, Utah
The Nautilus
47(1): 25-29, pls. 4-5
Publication
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Physa Draparnaud, 1801 (additional source)