Traits name details
original description
Olsson, A. A. (1922). The Miocene of northern Costa Rica with notes on its general stratigraphic relations. <em>Bulletins of American Paleontology.</em> 9(39): 173-481 [1-309], pls 1-32 [4-35]., available online at https://www.biodiversitylibrary.org/page/46040597 page(s): p. 322-323, pl. 14, figs 4, 8, 9, 14. [details]
additional source
Mansfield, W. C. (1925). Miocene gastropods and scaphopods from Trinidad, British West Indies. <em>Proceedings of the United States National Museum.</em> 66(2559): 1-65, pls. 1-10., available online at https://repository.si.edu/bitstream/handle/10088/15365/USNMP-66_2559_1925.pdf page(s): p. 54-55, pl. 10, figs 2, 5.; note: As "Turritella species cf. T. altilira var. chiriquiensis Olsson" [details]
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