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): 35 [details]
original description
(of Cerithium (Cerithidea) agnotum De Gregorio, 1890 †) De Gregorio, A. (1890). Monographie de la faune éocénique de l'Alabama et surtout de celle de Claiborne de l'Étage Parisien. <em>Annales de Géologie et de Paléontologie.</em> 7: 1-316, 46 pls., available online at https://www.biodiversitylibrary.org/page/37164070 page(s): p. 117, pl. 10, fig. 24. [details]
new combination reference
Palmer K. E. (van W.) & Brann D. C. (1966). Catalogue of the Paleocene and Eocene Mollusca of the southern and eastern United States. Part II. Gastropoda. <i>Bulletins of American Paleontology 48 (218)</i>: 471-1057 page(s): p. 762. [details]
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