Olsson, A. A. (1964). Neogene mollusks from northwestern Ecuador. Paleontological Research Institution, Ithaca, New York, 256 pp. + 38 pls. page(s): 62 [details]
original descriptionOlsson, A. A. (1964). Neogene mollusks from northwestern Ecuador. Paleontological Research Institution, Ithaca, New York, 256 pp. + 38 pls. page(s): 62 [details]
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