(ofPtychodon subpacificus Ladd, 1958 †)Ladd, H.S. (1958). Fossil land shells from western Pacific atolls. <em>Journal of Paleontology.</em> 32(1): 183-198. page(s): 189-190, pl. 30, figs 7,8 [details] Available for editors [request]
original description(ofPtychodon subpacificus Ladd, 1958 †)Ladd, H.S. (1958). Fossil land shells from western Pacific atolls. <em>Journal of Paleontology.</em> 32(1): 183-198. page(s): 189-190, pl. 30, figs 7,8 [details] Available for editors [request]
basis of recordSolem, A. (1976). Endodontoid land snails from Pacific Islands (Mollusca: Pulmonata: Sigmurethra). Part I, Family Endodontidae. <em>Fieldiana. Zoology.</em> 508 pp. Chicago., available online athttps://www.biodiversitylibrary.org/page/2642619[details]
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