Traits taxon details
original description
(of ) Conrad, T. A. (1832-1833). Fossil shells of the Tertiary formations of North America, illustrated by figures drawn on stone from nature. Philadelphia: Judah Dobson, W. P. Gibbons, Printer. Vol. 1(1): pp. [i]-viii + 9-20, pls 1-6 [1832]; Vol. 1(2): pp. 21-28, pls 7-14 [December 1832]; Vol. 1(3): pp. 29-38, no plates [August 1833]; Vol. 1(4): pp. 39-46, pls 15-20. , available online at https://www.biodiversitylibrary.org/page/23521363 page(s): 52 (108); note: p. 46 in first edition [details]
additional source
Conrad, T. A. (1865). Descriptions of new Eocene shells of the United States. <em>American Journal of Conchology.</em> 1: 142-149, pl. 11., available online at https://www.biodiversitylibrary.org/page/16084667 page(s): 143 [details]
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