Olsson, A. A. (1964). Neogene mollusks from northwestern Ecuador. Paleontological Research Institution, Ithaca, New York, 256 pp. + 38 pls. page(s): 91 [details]
MolluscaBase eds. (2025). MolluscaBase. Polystira oxytropis ecuadoriana Olsson, 1964 †. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1804940 on 2025-05-26
Marine Species Traits editorial board (2025). Marine Species Traits. Polystira oxytropis ecuadoriana Olsson, 1964 †. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1804940 on 2025-05-26
original descriptionOlsson, A. A. (1964). Neogene mollusks from northwestern Ecuador. Paleontological Research Institution, Ithaca, New York, 256 pp. + 38 pls. page(s): 91 [details]
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