Baker, F. C. (1938). New land and freshwater Mollusca from the upper Pliocene of Kansas and a new species of Gyraulus from early Pleistocene strata. The Nautilus. 51(4): 126-131.
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Baker, F. C.
1938
New land and freshwater Mollusca from the upper Pliocene of Kansas and a new species of <em>Gyraulus</em> from early Pleistocene strata