Traits name details
original description
(of Turritella nasuta var. houstonia G. D. Harris, 1895 †) Harris, G. D. (1895). New and otherwise interesting Tertiary Mollusca from Texas. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 47: 45-88, 9 pls., available online at https://www.biodiversitylibrary.org/page/26323100 page(s): p. 81, pl. 9, fig. 6, 6a [typical nasuta] [details]
basis of record
Palmer, K. van W. (1937). The Claibornian Scaphopoda, Gastropoda, and dibranchiate Cephalopoda of the southern United States. <em>Bulletins of American Paleontology.</em> 7(32): 1-730 [part I: 1-548; part II: 90 plates]., available online at https://www.biodiversitylibrary.org/page/30413130 page(s): p. 201, pl. 25, figs 4, 7, 11. [details]
additional source
Bowles, E. (1939). Eocene and Paleocene Turritellidae of the Atlantic and Gulf coastal plain of North America. <em>Journal of Paleontology.</em> 13:267-336, pls 31-34. page(s): p. 291-292, pl. 32, figs 2, 3. [details]
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