Campbell, L. D. & Campbell, S. C. (1976). Sinistral specimens of Olivella, Prunum and Granulina from the Pliocene of Virginia and North Carolina. The Nautilus. 90(4): 151-152, figs. 1-3.
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Campbell, L. D. & Campbell, S. C.
1976
Sinistral specimens of <i>Olivella</i>, <i>Prunum</i> and <i>Granulina</i> from the Pliocene of Virginia and North Carolina