Dall, W. H., 1916. A Contribution to the Invertebrate Fauna of the Oligocene Beds of Flint River, Georgia. Proceedings of the United States National Museum, 51.
New Species-Group Names:
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cookei Dall, 1916. p. 502. pl. 86. f. 2.
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vaughani Dall, 1916. p. 502. pl. 86. f. 1.