Traits name details
original description
(of Turritella altilira var. chiriquiensis Olsson, 1922 †) 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
Loel, W.; Corey, W. H. (1932). The Vaqueros formation, lower Miocene of California I. Paleontology. University of California Publications, Bulletin of the Department of Geological Sciences, 22(3): 31-410, pls. 4-65. page(s): p. 258, pl. 58, fig. 8; pl. 59, figs 2, 9. [details]
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