Traits taxon details
original description
Firby, J.R. (1993). A new species of <em>Vorticifex</em> (Gastropoda: Planorbidae) from late Cenozoic lake deposits, Nevada <em>Journal of Paleontology</em>. 67(3): 370-374, available online at https://doi.org/10.1017/S0022336000036854 page(s): 373, figs 2.1-2.6 [details]
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