Campbell, L. D.; Campbell, D. C.; Carter, J. G. (1995). Molluscs of the Natural Well locality, Duplin stratotype, near Magnolia, North Carolina, and rediscovery of Carinorbis quadricostata (Emmons, 1858) (Gastropoda: Amathinidae). Tulane Studies in Geology and Paleontology. 27 (1-4): 165-177.
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Campbell, L. D.; Campbell, D. C.; Carter, J. G.
1995
Molluscs of the Natural Well locality, Duplin stratotype, near Magnolia, North Carolina, and rediscovery of <i>Carinorbis quadricostata</i> (Emmons, 1858) (Gastropoda: Amathinidae).
