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Plagiodontes : ウィキペディア英語版 | Plagiodontes
''Plagiodontes'' is a recent genus of small to medium-sized air-breathing land snails, terrestrial pulmonate gastropods in the family Odontostomidae.〔Breure A. S. H. & Romero P. (2012). "Support and surprises: molecular phylogeny of the land snail superfamily Orthalicoidea using a three-locus gene analysis with a divergence time analysis and ancestral area reconstruction (Gastropoda: Stylommatophora)". ''Archiv für Molluskenkunde: International Journal of Malacology'' 141(1): 1-20. .〕 ''Plagiodontes'' is sometimes considered a subgenus in the genus ''Cyclodontina''. It occurs in tropical and sub-tropical regions of South America.〔Simone, L.R.L. 2006. Land and Freshwater Mollusca of Brazil. EGB, Fapesp, São Paulo, Brazil. 390 p.〕 ==Fossil record== The fossil record of ''Plagiodontes'' extends back to the Brazilian Paleocene, with a supposed specimen of ''Plagiodontes dentatus'' found in Itaboraí Basin.〔Salvador, R.B. & Simone, L.R.L. 2012. New fossil pulmonate snails from the Paleocene of Itaboraí Basin, Brazil (Pulmonata: Cerionidae, Strophocheilidae, Orthalicidae). Archiv für Molluskenkunde 141(1): 43-50. 〕 This same species has also been recorded from the Miocene of Uruguay and Miocene and Pleistocene of Argentina.〔Caorsi J. & Goñi J.C. 1958. Geologia Uruguaya. Boletín del Instituto Geológico del Uruguay, Montevideo, 37:1–73.〕〔Parodiz, J.J. 1969. The Tertiary Non-marine Mollusca of South America. Annals of the Carnegie Museum 40: 1–242.〕〔Morton, L.S. & Herbst, R. 1993. Gastrópodos del Cretácico (Formación Mercedes) del Uruguay. Ameghiniana, 30(4): 445–452.〕
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