Conrad, T. A. (1842). Observations on a portion of the Atlantic Tertiary region, with a description of new species of organic remains. Bulletin of the Proceedings of the National Institute for the Promotion of Science. 2: 171–194, pls. 1-2.
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Conrad, T. A.
1842
Observations on a portion of the Atlantic Tertiary region, with a description of new species of organic remains
Bulletin of the Proceedings of the National Institute for the Promotion of Science